Buso Renkin

Buso Renkin (Japanese: 武装錬金 Hepburn: Busō Renkin, lit. "Arms Alchemy") is an anime television series adapted from the manga of the same name. Produced by Xebec and was broadcast on Japanese television network TV Tokyo from 2006 to 2007. The episodes follow Kazuki Muto who becomes an Alchemic warrior in the battle against Alchemic monsters known as Homunculi.

A Night at the Dorm (Episode 8)
A Homunculus named Jinnai uses a buso renkin and takes control over the students in the dorm, ordering them to take the kakugane from Tokiko.