Sunday is the latest five-star character introduced in the Honkai Star Rail 2.7 update. This article provides a comprehensive overview of Sunday’s complete kit, detailing his core abilities and gameplay mechanics. We will explore his base stats, signature Light Cone, and key attributes that define his combat style. Additionally, the analysis covers his fundamental attacks, unique skill, powerful Ultimate, versatile technique, and talents that enhance his effectiveness in battle.
To give a full picture of his potential, we also delve into Sunday’s Eidolons and their impact on his performance. Whether you are a seasoned player or new to the game, this guide offers valuable insights to help you understand and maximize Sunday’s capabilities. Continue reading for an in-depth look at this exciting new addition.
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Basic Information
Sunday is a five-star support character in Honkai Star Rail, specializing in enabling immediate actions for allied characters and their summons. His kit allows him to regenerate a portion of a designated ally’s Energy while boosting their Damage, Critical Rate, and Critical Damage, enhancing overall team performance.

- Rarity: Five-star
- Combat Type: Imaginary
- Path: Harmony
Signature Light Cone: A Grounded Ascent
- Stats: HP 1164.2 | ATK 476.28 | DEF 529.20
- When the wearer uses Skill or Ultimate on an ally, they regenerate Energy (scaling from 6 to 8) and apply stacks of “Hymn,” increasing the ally’s Damage by up to 24% for 3 turns. Every two uses of Skill or Ultimate also restore 1 Skill Point.
Traces
- Basic ATK – Gleaming Admonition: Deals Imaginary DMG equal to 100% of Sunday’s ATK to one enemy.

- Skill – Benison of Paper and Rites: Grants an allied character and their summon an immediate action and increases their Damage by 30%. If the target has a summon, Damage is further increased by 50% for 2 turns. Using this skill on “The Beatified” recovers 1 Skill Point. Note: This skill does not trigger immediate action on allies following the Path of Harmony.

- Ultimate – Ode to Caress and Cicatrix: Restores 20% Energy to one ally and transforms them and their summon into “The Beatified,” boosting their Critical Damage by 30% of Sunday’s CRIT DMG plus 12%. The effect lasts 3 turns and is dispelled if Sunday is knocked down.

- Talent – The Sorrowing Body: Using Skill increases the target’s Critical Rate by 20% for 3 turns.
- Technique – The Glorious Mysteries: The first time Sunday uses an ability on an ally in the next battle, their Damage increases by 50% for 2 turns.

Bonus Abilities
- Rest Day’s Longing: Ensures Energy regeneration from Ultimate is at least 40.
- Exalted Sweep: Sunday regenerates 25 Energy at the start of battle.
- Haven in Palm: Using Skill dispels one debuff from the target.
Stat Boosts
- +37.3% Critical Damage
- +18.0% Effect Resistance
- +12.5% Defense
Eidolons

- Millennium’s Quietus: Skill use allows the target to ignore 16% of enemy DEF for Damage, and summons ignore 40%, lasting 2 turns.
- Faith Outstrips Frailty: After the first Ultimate, recovers 2 Skill Points and increases Damage dealt by “The Beatified” by 30%.
- Hermitage of Thorns: Ultimate +2 levels (max 15), Basic ATK +1 level (max 10).
- Sculpture’s Preamble: Regenerates 8 Energy at the start of the turn.
- Paper Raft in Silver Bay: Skill +2 levels, Talent +2 levels (max 15).
- Dawn of Sidereal Cacophony: Talent’s Critical Rate boost becomes stackable up to 3 times, duration increases by 1 turn, and can be applied to the Ultimate target. Excess Critical Rate over 100% converts to additional Critical Damage.
Sunday’s diverse kit provides strong support capabilities, particularly in summon-based team compositions. Whether you aim to unlock his full potential or diversify your roster, Sunday is a compelling choice for strategic gameplay.
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Frequently Asked Questions
What role does Sunday play in a team?
Sunday is a versatile support character who enables immediate actions for allies and their summons, while also boosting Energy regeneration, Damage, Critical Rate, and Critical Damage. He excels in summon-focused teams and provides strong utility.
What is unique about Sunday’s Signature Light Cone, A Grounded Ascent?
A Grounded Ascent regenerates Energy for the wearer after using Skill or Ultimate on an ally and applies “Hymn” stacks that increase the target’s Damage. It also restores Skill Points after every two uses, enhancing sustainability in battle.
How does Sunday’s Skill, Benison of Paper and Rites, work?
The Skill allows one ally and their summon to act immediately and boosts their Damage significantly, with extra Damage if the ally has a summon. It does not trigger immediate action on allies following the Path of Harmony.
What effects does Sunday’s Ultimate, Ode to Caress and Cicatrix, provide?
Sunday’s Ultimate restores 20% Energy to an ally and their summon, turning them into “The Beatified,” which boosts their Critical Damage. The effect lasts 3 turns but is removed if Sunday is knocked down.
How do Eidolons improve Sunday’s performance?
Sunday’s Eidolons enhance his abilities by increasing DEF penetration, Skill and Ultimate efficiency, Energy regeneration, and stacking Critical Rate buffs, significantly improving his support capabilities.
Can Sunday be used effectively outside summon-based teams?
While Sunday’s kit is optimized for summon synergy, his buffs and Energy regeneration can still provide value in broader team compositions, especially those focused on burst damage and frequent actions.
Conclusion
Sunday brings powerful support capabilities to Honkai Star Rail, enhancing team synergy through energy regeneration, damage boosts, and strategic summons. His versatile kit makes him an invaluable asset for players aiming to optimize their lineup and maximize battle efficiency. Whether building summon-focused teams or strengthening overall performance, Sunday is a compelling choice for any roster.