Yoshika is a “zombie” (cursed corpse, technically) revived by Seiga Kaku. Although she can’t decay, she still has the same hunger as other zombies. The only one she would never harm is Seiga. It’s unclear whether she thinks on her own, or if Seiga is controlling her. Although she’s slow and fairly clumsy, one bite from her is most likely deadly. She says “uuu” a lot. She can genuinely be “loving” to Seiga, in her own way.