This time, Honkai: Star Rail's version 4.5 takes summer vacation as one of its themes. We will arrive at Interastral Peace Entertainment's headquarters, Astropolis, and two swimsuit characters will be released! Below, we will give you a quick overview of the new characters' gameplay, so you can have a general plan for the upcoming banners.

Robin • Summeretto —— Wind「Remembrance」

Upon unleashing the enhanced 【Technique】, Robin increases all allies' DMG at the start of the next battle and gains "Atmosphere Points." During battle, healing, shielding, and attacking by allies also provide "Atmosphere Points" for Robin.

Robin's Memosprite is three little Memobirds. The Skill can directly summon the Bassist. As "Atmosphere Points" increase, the Drummer and the Electronic Player will appear successively. When "Atmosphere Points" reach 12, all three band members are present, triggering the "Fever Moment," which provides buffs to the entire team.

At this point, the background music switches to Robin's new song, and the three little Memobirds assist in dealing damage, dealing Wind DMG to all enemies.

Unleashing 【Ultimate】 grants action advance and energy regeneration to a single ally.

Currently, no binding relationship between Robin • Summeretto and the Remembrance team has been observed. She follows a versatile route, and the developers have recommended three team combinations for players:

① Castorice + Evernight + Robin • Summeretto + Hyacine, replacing Cyrene's full-team buff position;

② Evernight + Cyrene + Robin • Summeretto + Hyacine, replacing Trailblazer (Remembrance)'s action advance position;

③ Himeko • Nova + Robin • Summeretto + Welt + Huohuo, replacing Sunday/Sparkle's action advance position.

※ These are just references to help you understand. There are many more viable team comps, and we will provide more detailed team-building suggestions in our subsequent character guides~

Aventurine • Waveflair —— Quantum「Elation」

Upon unleashing a damaging 【Technique】, Aventurine rides the waves to attack enemies, entering battle with 2 points of "Heat" and the "Good Show" state.

This "Heat" is a special mechanic of Aventurine • Waveflair. Accumulating 10 points immediately triggers an Elation Skill, dealing AoE + multi-hit ricochet damage to all enemies. Additionally, during the next Aha Moment, Aventurine's Elation Skill becomes enhanced, consuming all "Heat" to deal even higher damage.

This preview demonstration was quite complete. We can see the following ways to obtain "Heat":

① Teammate attacks grant 3 "Heat" and a certain amount of Laugh Points;

② Aventurine's Skill deals AoE Elation DMG and grants 4 "Heat";

③ Aventurine's Ultimate deals AoE Elation DMG, increases his own SPD, and grants a certain amount of "Heat".

From the various mechanics mentioned above, it's clear that Aventurine • Waveflair has a distinct advantage. His overall damage output is smooth, and he is not bound to other Elation teammates — he only requires teammates to act frequently. By stacking layers through himself and his teammates, he triggers his Elation Skill at high frequency to deal damage.

Therefore, the preview provided two team composition references:

① Aventurine • Waveflair + Ashveil + Mortenax Blade: Emberblaze + Dan Heng • Permansor Terrae. Actually, this can be optimized further — let Mortenax Blade: Emberblaze hold onto his Ultimate when at low HP, using his own revive mechanic to repeatedly get back up and serve as a sustain slot, then replace the 4th slot with a group support like Tribbie, making the team stronger.

② Aventurine • Waveflair + Yao Guang + Trailblazer (Elation) + Huohuo. This is essentially a classic Elation team.

※ Many players can't spare Yao Guang or Trailblazer (Elation) for this team. Which team to ultimately choose depends on each player's own situation.

That concludes this brief analysis of the new characters in Honkai: Star Rail version 4.5. We will continue to update with full skill, Eidolon, and Light Cone analyses for Robin • Summeretto and Aventurine • Waveflair. Trailblazers interested in these two characters can follow us and stay tuned~