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With "The Ark of Atrahasis Conquest” coming to a close, we are approaching the final part of Blue Archive’s Volume F story. It introduces a new event and a new announcement for 1 new character, Koyuki, and a returning character, Shiroko. In this article, we will briefly go over whether Koyuki is worth pulling for or saving for another banner.
Overview
Koyuki is a Permanent 3* Mystic Striker student who has mainly seen usage as an AoE damage dealer. Similar to most other damage dealers, she appreciates the slight boost in damage from Enhanced+ unlocked at Unique Equipment Level 40.

Koyuki is your standard AoE damage dealer that has mostly been used in Goz or general content for her large AoE on her EX Skill to clear out waves of enemies. However, the effect on her EX skill is randomized, which can lead to some inconsistencies in damage.
But this shouldn’t be a deciding factor when considering whether or not to bring her onto a stage. In addition to this, her Basic skill also has a ricochet effect, which is completely capable of clearing out waves of enemies.
A more in-depth review of Koyuki can be found here.
Now that we know what Koyuki provides to the team, is she worth pulling for?
First and foremost, if Koyuki is your favorite student, then don't let us stop you from pulling her. As at the end of the day, it is your game and account.
In general, No. While Koyuki is a strong AoE damage dealer who can perform well in raids and general content, at the end of the day, she is just another Mystic AoE in which there are better alternatives. Even if you are a newer player looking to expand your roster or lacking a Mystic AoE, the upcoming rerun banner for Mutsuki (New Year), who performs well in both Goz and Perorodzilla is a better alternative to her.
As we have previously mentioned, a few banners after Koyuki's release contains several strong students who all share the same banner timing, the most important of which being Kayoko (New Year), who is an extremely potent Mystic Supporter. Having a shared banner also means the pity is shared between banners, allowing you to pick up multiple students if you happen to get one of them early.