Ruan Mei

The Harmony

Ruan Mei

/Ice/★★★★★

Herta Space Station

Stier

Introduction

Ruan Mei is a 5-star Ice character in Honkai: Star Rail. Ruan Mei's weapon type is Ruan (traditional Chinese plucked string instrument) and path is Harmony. Faction: Herta Space Station.

On our Honkai: Star Rail tier list Ruan Mei is S tier, 2nd of the 87 characters ranked, from where 20 current tier lists put Ruan Mei.

By game mode, Ruan Mei is A in Memory of Chaos, A in Pure Fiction and S in Apocalyptic Shadow.

Other Ice characters in Honkai: Star Rail: Cyrene, Evernight, Gepard, Herta, Jingliu, March 7th and 4 more.

Is Ruan Mei good?

Ruan Mei buffs the whole party's damage, SPD, and Break Efficiency at once. She can also push back an enemy's recovery once their Weakness breaks, tacking on some bonus damage while she's at it. She's become a fixture in a huge range of team comps, which makes her close to a mandatory pull for the utility alone.

Her best gear option, Watchmaker, gives her enough Break Effect to hit the 180 threshold solo, while Past Self in Mirror is a strong alternative that adds a party-wide damage buff on her Ultimate along with Energy Regen and SP restoration.

Pairs well with: F2P team; Break Effect team; DoT team; Generalist team; Dual DPS team.

Strengths

  • Buffs the whole party's damage, SPD, and Break Efficiency together
  • Pushes back enemy recovery after Weakness Break for bonus damage
  • Slots into an unusually wide range of team comps

Best build for Ruan Mei

From 6 guides

Light cone

6 options

Main stats

Body
HP%/DEF%
Feet
SPD
Planar Sphere
HP%/DEF%
Link Rope
Energy Regeneration Rate/Break Effect
Substats
Break Effect=SPD >HP% >DEF% >Effect RES

Relic set

3 options
  1. 1
    Thief of Shooting Meteor(4)
    4 of 5
  2. 2
    Watchmaker, Master of Dream Machinations(4)
    3 of 5
  3. 3
    Messenger Traversing Hackerspace(4)
    3 of 5

Planar ornament

6 options
  1. 1
    Sprightly Vonwacq(2)
    5 of 5
  2. 2
    Penacony, Land of the Dreams(2)
    5 of 5
  3. 3
    Broken Keel(2)
    3 of 5
  4. 4
    Talia: Kingdom of Banditry(2)
    4 of 5
Show 2 more set options
  1. 5
    Lushaka, the Sunken Seas(2)
    3 of 5
  2. 6
    Fleet of the Ageless(2)
    2 of 5

Profile

Ruan Mei carries the title "Genius Society #81". Ruan Mei is voiced by Zhang Wenyu (张文钰) in Chinese, Emi Lo in English, Onishi Saori (大西沙織) in Japanese, and Yoon Yeo-jin (윤여진) in Korean.

Background

Ruan Mei is a playable character in Honkai: Star Rail.

A sweet-tempered and elegant scholar, and Member #81 of the Genius Society.

An expert in the biological sciences. She earned Nous' attention with her talent and terrifying perseverance, and began her research on the origin of life in a secret corner of the universe.

Because of that, she was invited by Herta to collaborate with Screwllum and Stephen to develop the Simulated Universe.

Secretly, she greatly enjoys traditional theater and desserts, and she is also very interested in embroidery.

Ruan Mei is a young woman with turquoise eyes and waist-length, dark brown hair with turquoise streaks.

It is loosely tied back into a bun with a gold colored DNA hairpin.

She also wears a pearl earring on her left ear and a pearl necklace around her neck.

Her outfit consists of an elegant, short qipao colored a dark teal, brown, and white with gold highlights, elbow-length gloves a slightly darker color and a silver bangle around her left wrist.

She also has flowers on the center-left side of her hips.

Her right thigh has a teal-colored thigh garter shaped like a double-helix DNA strand with a flower in the middle.

She also wears closed-toe, dark teal high heels with gold patterns.

Stories

5
Story 1

A scholar of exquisite temperament, member #81 of the illustrious Genius Society, and an expert in the field of life sciences.

She earned Nous' attention with her talent and terrifying perseverance, and began her research on the origin of life in a secretive corner of the universe.

Subsequently, she was invited by Herta to collaborate with Screwllum and Stephen to develop the Simulated Universe.

Privately, she revels in traditional theater and desserts, and she is also very interested in embroidery.

Story 2

During her childhood, she received early exposure to science from her mother, who was a "scientist."

Her life in a tiny house with her family of science enthusiasts was filled with love. As such, it wasn't long before she realized there were subtle differences in "love," each kind coming with different scents.

Her grandmother with silver hair was a fan of traditional theater with its humming and chirping, while her father wore a pair of large, furry boots.

Her parents loved each other, but they still argued from time to time.

She was an impassive girl who made mistakes all the time, but was also forgiven all the time.

"I was closer with Aunt Arlice compared to my other relatives, as she would buy me snacks. Her love was the best."

Soon, the young girl learned to be stubborn. Her understanding of "love" broke away from the formulae taught in textbooks.

As she grew older, her mother became strict with her. Together, they walked one step at a time on a vast glacial planet.

The girl gasped and stopped on the way, carefully observing the fantastical and enchanting "lifeforms" buried beneath the glaciers - What used to be lifeforms, at least.

Every time she arrived home after going on scientific expeditions, it was time for "rewards" —

When she took a small bite of the cake, the mouthwatering aroma would immediately cling to the roof of her mouth. Her insignificant anticipation always gave her mother's research an inviting smell.

Starting from their home, a planet blessed by Abundance, they boarded research aircraft and set off to more worlds.

Surrounded by flash bombs, silk headscarves, ribbons, and embroidery, the girl embraced joy amongst "lifeforms" created by spiraling and ascending data.

"A-Ruan, after eating Qingtuan, you must wash your fingers thoroughly before you can touch the lab bench."

Story 3

She was dressed all in black in a mourning attire at her parents' funeral. As usual, she still tied her hair neatly. Her expression was hidden behind her ink-black strands of hair.

She did not shed a single tear.

As the night fell, layers of geometric patterns formed by data spirals appeared on the screen in the lab. They shifted, expanded, and flowed along with the sound of traditional theater songs. After peeling away the layers of the patterns, the secret she meticulously crafted and protected with care was revealed — her parents with their eyes closed. Their faces were as impassive as if they were asleep.

"This is a let-down. They failed to keep their promise with Grandma."

"And I, too, let them down for failing to protect them as promised."

"Only science... never lets anyone down," she said.

Wanting her parents to be equal, she stopped using her previous nickname and gave herself a new name by combining each of her parents' surnames.

Since then, whenever someone asked her about her "home," there would be a flash of confusion in her eyes. She seems to have forgotten everything.

In such a state, she started working around the clock on her calculations. She was so engrossed in her research that she never ate regularly. When she was on a roll, she could spend entire days and nights working on research without sleeping, and only dozed off when she hit her limit.

Soon, she was only relying on the faint glow of fyreflies to gather her research results every night. The more dismissive she was of the existing laws of life, the quicker she progressed. She totally disregarded formulas, then moved on to ignoring the meaning of life. She simply observed, assessed with her hands, held the data in her palm to feel it, then proceeded to concoct new laws for species.

As a result, the ferns and flowers in her lab flourished ever more. They grew at a speed visible to the human eye, and ultimately filled every space in the lab. In the space between the flowers and leaves lay the serene and emotionless countenances of her parents, formed by the aggregation of "data."

The moment her sleeping "parents" were about to open their eyes — By then, she had nearly destroyed the existing laws of biological evolution on the entire planet, yet she still marched on toward her goal.

It wasn't until she looked up from her research and stared at the sky did she notice that the gaze of the Erudition had descended upon her.

Story 4

After receiving the gaze of Nous, she left her home and began a reclusive life.

No one knew what she asked Nous, but after that incident, she became even more apathetic and impassive, and even more immersed in her research — She would only study the fundamental nature of "life."

A greater variety of "lifeforms" came into existence through her concoction.

Some "burning" lifeforms became flowing flames that crept and weaved under her feet. Sometimes, she felt like she was fire itself.

Some "fluid" beings turned into liquid light that slithered around her slender wrists. Sometimes, she felt like she was light itself.

Some living things concocted from "knowledge" attempted to develop their own thoughts, sentience, and emotions. They sometimes rambunctiously cry, guffaw, or wail — all these have been fused into her body.

Yet, she could not feel them.

Life only exists for such a short time, after all. They fleetingly pass from birth to death, and her research is the only constant.

Occasionally, her casual "research" would shake the schools of biology. Her "research" transformed many planets. Flying whales, swimming deer, fearful flowers, and trees with a vast root system... Her creations have already went beyond the scope of experience and imaginations comprehensible to organic life.

She kept pushing herself for a more in-depth understanding of "life," just to bring herself closer to Nous — and THEIR unforgettable glance.

Aeons... What kind of beings are they? Are they also a form of life?

As her "groundbreaking" studies rose to fame within the cosmic academic community, people always tried to disrupt her life as a recluse.

She turned to look at the letter from the Genius Society on the desk and, once again, dumped it into the trashcan.

Story 5

She is surrounded by an eccentric science fanatic from a small town, an inorganic lifeform, and a puppet girl. They indulge in afternoon teas and collaborate in research. They squabble loudly and giggle from time to time.

When did she first meet them? She can't remember, only that it was for a project. She was forced to be there — of that she is certain. With leisure, she munches on the cake. She became a part of this solely for the sake of simulated "Aeons," which are worth her time and efforts.

They are worth her time... but not worth being forced to socialize.

"Genius Society? I do not care."

"This is a strange, instinctive feeling. That one named 'Herta' is rather similar to me. I mean... similar on a deeper level."

She is certain that she won't make another mistake. It's because she no longer trusted anyone, so she won't be let down again, and... she won't let anyone else down again.

What is the fundamental essence of "life"... Where does "life" end?

Do the answers really exist?

Not a trace of emotion can be discerned on her impassive and silent face. Yet, her hair is roiling with the heat of boiling and steaming, and the rims of her eyes are slightly red — she is enjoying this.

Only the word "Aeon" can stir her heart. Everything else in the universe is a mere distraction.

How interesting.

On the "incubator," a "life" nurtured by the "rice cooker" popped out in perfection. The method with which life is created is miraculous.

How romantic.

She knows better than anyone the price one has to pay to study Aeons... but she does not care. She knows! She might even — become...!?

The time is just right — The update for the "project" is about to commence.

She turns around and leaves.

Unbeknownst to the girl, her grandmother has always been watching her through the monitor, day after day for countless years.

"A-Ruan... My A-Ruan. When we finally meet again, would it be...?"

Stats

  • HP1,087
  • ATK660
  • DEF485
  • SPD104
  • Taunt100

Level 80. Each bar is measured against the highest value in the Honkai: Star Rail roster.

Skills

14
  • Threading Fragrance

    Basic ATK

    Deals Ice DMG equal to 100% of Ruan Mei's ATK to one designated enemy target.

  • String Sings Slow Swirls

    Skill

    After using her Skill, Ruan Mei gains Overtone, lasting for 3 turn(s). This duration decreases by 1 at the start of Ruan Mei's every turn. When Ruan Mei has Overtone, all allies' DMG increases by 32.0% and Weakness Break Efficiency increases by 50%.

  • Petals to Stream, Repose in Dream

    Ultimate

    Ruan Mei deploys a Zone that lasts for 2 turns. The Zone's duration decreases by 1 at the start of her turn. While inside the Zone, all allies' All-Type RES PEN increases by 25.0% and their attacks apply Thanatoplum Rebloom to the enemies hit. When these enemies attempt to recover from Weakness Break, Thanatoplum Rebloom is triggered, extending the duration of their Weakness Break, delaying their action by an amount equal to 20% of Ruan Mei's Break Effect plus 10%, and dealing Break DMG equal to 50% of Ruan Mei's Ice Break DMG. Enemy targets cannot have Thanatoplum Rebloom re-applied to them until they recover from Weakness Break.

  • Somatotypical Helix

    Talent

    Increases SPD by 10.0% for all teammates (i.e., excluding this unit). When allies Break an enemy target's Weakness, Ruan Mei deals to this enemy target Break DMG equal to 120.0% of her Ice Break DMG.

  • Silken Serenade

    Technique

    After using the Technique, gains Silken Serenade. At the start of the next battle, automatically triggers the Skill for 1 time(s) without consuming Skill Points. In Simulated Universe or Divergent Universe, when Ruan Mei has Silken Serenade, the team actively attacking enemies will always be regarded as attacking their Weakness to enter combat, and this attack can reduce all enemies' Toughness regardless of Weakness types. When breaking Weakness, triggers Weakness Break Effect corresponding to the attacker's Type. For every Blessing in possession (up to a max of 20 Blessings will be taken into account), additionally increases the Toughness Reduction of this attack by 100%. After breaking an enemy target's Weakness, additionally deals to the enemy target Break DMG equal to 100% of Ruan Mei's Ice Break DMG.

  • Inert Respiration

    Trace

    Increases Break Effect by 20% for all allies.

  • Days Wane, Thoughts Wax

    Trace

    Ruan Mei regenerates 5 Energy at the start of her turn.

  • Candle Lights on Still Waters

    Trace

    In battle, for every 10% of Ruan Mei's Break Effect that exceeds 120%, her Skill additionally increases allies' DMG by 6%, up to a maximum of 36%.

  • Neuronic Embroidery

    Eidolon 1

    While the Ultimate's Zone is deployed, the DMG dealt by all allies ignores 20% of the target's DEF.

  • Reedside Promenade

    Eidolon 2

    While Ruan Mei is on the field, all allies increase their ATK by 40% when dealing DMG to enemies that are Weakness Broken.

  • Viridescent Pirouette

    Eidolon 3

    Ultimate Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.

  • Chatoyant Éclat

    Eidolon 4

    When an enemy target's Weakness is Broken, Ruan Mei's Break Effect increases by 100% for 3 turn(s).

  • Languid Barrette

    Eidolon 5

    Skill Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.

  • Sash Cascade

    Eidolon 6

    Extends the duration of the Ultimate's Zone by 1 turn(s). The Talent's Break DMG multiplier additionally increases by 200%.

Art

Ruan Mei key art

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