Robin • Summeretto is the summer form of Penacony’s diva, arriving in Honkai: Star Rail as a five-star Wind character on the Path of Remembrance. She was teased through official drip marketing and is lined up for Phase 1 of Version 4.5, sharing the update with Aventurine • Waveflair.
Quick answer: No exact release date is officially confirmed yet. Robin • Summeretto is set for the first half of Version 4.5, which points to a window of late August 2026 if the standard six-week patch cadence holds.
Release status and expected window
Status: Window (not yet confirmed). HoYoverse has revealed the character through drip marketing but has not stamped a precise banner date. The debut is tied to the first phase of Version 4.5, so the timing follows whenever that update goes live.
Version 4.4 launched on July 15, 2026. Applying the usual six-week gap between updates places Version 4.5 in late August 2026, with Robin • Summeretto opening the patch in Phase 1. Treat this as an estimate until the official preview livestream locks the calendar.
| Detail | Current information |
|---|---|
| Version | 4.5, Phase 1 |
| Status | Revealed via drip marketing, banner date not confirmed |
| Expected window | Late August 2026 (based on six-week cadence) |
| Debuts alongside | Aventurine • Waveflair (Phase 2) |
Note: Once the official launch stream airs, the exact start and end dates for her banner will be set. Until then, plan around a late-August timeframe rather than a specific day.
Who Robin Summeretto is
This is a summer variant of Robin, the galaxy’s most popular singer, who has left Penacony for a vacation in Astropolis. Her character introduction describes her hoping to “gather inspiration for a new song” from the beachside surroundings, following “the lingering echoes of memory.”
The biggest change is her identity in combat. The original Robin is a Physical unit on the Path of Harmony, while Robin • Summeretto moves to Wind and the Path of Remembrance. That shift signals a memosprite-based support role rather than the classic full-team action advance, and it means she is expected to sit alongside the original Robin instead of replacing her.
| Profile | Detail |
|---|---|
| Rarity | 5-Star |
| Element | Wind |
| Path | Remembrance |
| Base character | Robin (Penacony) |
Voice actors
Robin • Summeretto keeps her cast across the four main dub languages. Alice Himora returns as the English voice, having also played the original Robin.
| Language | Voice actor |
|---|---|
| English | Alice Himora |
| Japanese | Kaori Nazuka |
| Chinese | Qian Chen |
| Korean | Shin Onyu |
What her kit does
Robin • Summeretto plays as an offensive-minded support who buffs the team while dealing HP-scaled area damage through her memosprites, the “Summer Songbirds.” She builds a resource called Vibes whenever allies attack or provide healing and shields, then converts that into extra songbirds and a team-wide state.
- Her Skill summons the memosprite Bessie; reaching 6 and 12 Vibes brings out Drummie and Paddie.
- With all Songbirds active, she enters the “Fever” state and deploys a Zone where allies ignore a percentage of enemy DEF.
- Her Ultimate advances one ally by 100% and regenerates energy, then grants “Special Guest” so that ally feeds her extra Vibes.
- Her passives hand out ATK or CRIT DMG buffs and raise the CRIT Rate of both Robin • Summeretto and the Songbirds.
Because she advances a single ally instead of the whole team, the original Harmony Robin keeps her own niche. That makes the summer form a complement in Remembrance-focused teams rather than a straight upgrade. Kit values here come from beta testing and can change before launch.
How to prepare before the banner
She lands right after the Fate/stay night collaboration in Version 4.4, so if you spent heavily there, it is worth rebuilding your Stellar Jade reserve before committing. Bank unclaimed event rewards, finish Simulated Universe and Nameless Honor tracks, and hold off on standard warps if she is a priority.
You will know the wait is over when her banner appears in-game at the start of Version 4.5’s first phase. Until HoYoverse confirms the date on its official channels, keep the timing marked as an estimate and check back once the preview stream sets the schedule.
