She first appears introducing Zina to class A. She and Aina Rumika go to Silverman Gym to return Tachibana's gym card and end up joining the gym.
Kure-sensei has been noted by Machio to have the physical conditioning of an athlete and has shown that he is physically superior to her peers, much to the shock of the teachers and students of Silverman's Gym. It is possible that her physical abilities come from being trained as an assassin like the rest of her family. It is unknown if she can perform Release or not.
Notes & Trivia
- Yakusha hails from the Kure Clan, an infamous assassin group that feature heavily in other Sandroverse series.