Past Self in Mirror
For the Path of: HarmonyPast Self in Mirror is a 5★ Light Cone for the Path of Harmony in Honkai: Star Rail.
A 5-star cone that both massively boosts the wearer's Break Effect and grants a team-wide DMG buff plus team energy regen on Ultimate use, making it a best-in-slot, essentially irreplaceable pick for its intended playstyle.
Past Self in Mirror is a Light Cone for the Harmony Path. Ranked SS on the Light Cone tier list. Best paired with Ruan Mei. Needs 7 material types to reach Lv.80.
Last updated: 31/07/2026
The figures on this page come directly from gamevika's internal game data store (counted/read straight from the real records), not an estimate or copy from elsewhere.
Effect
Increases the wearer's Break Effect by 60%. When the wearer uses their Ultimate, increases all allies' DMG by 24%, lasting for 3 turn(s). If the wearer's Break Effect exceeds or equals 150%, 1 Skill Point will be recovered. At the start of each wave, all allies regenerate 10 Energy immediately. Abilities of the same type cannot stack.
Is Superimposition S1 → S5 worth it?
Base Stats (Lv80)
| Lv. | HP | ATK | DEF |
|---|---|---|---|
| 1 | 48 | 24 | 24 |
| 20 | 185 | 92 | 92 |
| 30 | 178 | 89 | 89 |
| 40 | 254 | 127 | 127 |
| 50 | 331 | 166 | 166 |
| 60 | 408 | 204 | 204 |
| 70 | 485 | 242 | 242 |
| 80 | 562 | 281 | 281 |
Best Characters
This is the #1 pick in Ruan Mei's build recommendation — the effect matches this character's role directly.
Ascension Materials
Characters who use this
Story
She once loved to seal the moment when plum blossoms were on the verge of wilting and keep them close to her. It has been many years since then. Many lifeforms — rambunctious, sweet, and everything in between — have bloomed from her hands, but the plum blossoms still wilt at their preordained times. It has been many years since then. Her visage in the mirror seems untouched by time. But, in the grand scheme of the cosmos, is she too destined to last for but a fleeting moment? "If all is set for eventual demise, what purpose, then, does creation serve?" After a silence that seems to stretch to eternity, the winds blow, the petals fall, and the reflection in the mirror tenders the same answer as always. "For the day when plum blossoms are no longer kept." She deftly caresses the icy surface of the mirror. Such soliloquies have happened too many times for her to count.
Alternative cones on the same Path
Trivia & Origins
Signature Cone Of
Determined from the official Gacha pairing table (AvatarUp GachaID <-> WeaponUp GachaID+1000): this cone is banner-paired with Ruan Mei, not a guess.
Frequently Asked Questions
What does Past Self in Mirror do?
Increases the wearer's Break Effect by 60%. When the wearer uses their Ultimate, increases all allies' DMG by 24%, lasting for 3 turn(s). If the wearer's Break Effect exceeds or equals 150%, 1 Skill Point will be recovered. At the start of each wave, all allies regenerate 10 Energy immediately. Abilities of the same type cannot stack.
What does Past Self in Mirror do at Superimposition 5 (S5)?
Increases the wearer's Break Effect by 100%. When the wearer uses their Ultimate, increases all allies' DMG by 40%, lasting for 3 turn(s). If the wearer's Break Effect exceeds or equals 150%, 1 Skill Point will be recovered. At the start of each wave, all allies regenerate 20 Energy immediately. Abilities of the same type cannot stack.
Who should use Past Self in Mirror?
Based on cross-source consensus builds, this cone works best on: Ruan Mei, Trailblazer · Imaginary, Trailblazer · Imaginary.
How many materials does it take to ascend Past Self in Mirror to Lv.80?
You need 7 material types and 385,000 Credits to ascend the cone to Lv.80 (see the table above for details).
How to read this Light Cone page
Every Light Cone has exactly one passive effect tied to the wielder's combat performance; that effect scales up as you Superimpose it from S1 to S5 — use the S1-S5 buttons above to see the exact numbers at each level instead of guessing or interpolating. A Light Cone only delivers its full value on a character who shares its Path; "Characters who use this cone" lists every character on that Path, while "Best users" is a narrower list pulled from real build consensus, not a guess.
Base stats (HP/ATK/DEF) are shown at Lv80 for every cone of the same rarity so they can be compared directly; a 5-star cone will always edge out 4-star and 3-star ones here — the real difference lives in the passive effect, not the flat stats. The "Alternative cones on the same Path" section suggests a few other options if you do not own the signature cone yet, or want to compare before spending ascension materials.
See the full list on the Light Cones page, or check terms in the HSR Glossary.
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