machine-doll wa kizutsukanai
Unbreakable Machine-Doll
A light novel series by Kaitou Reiji, with illustrations by Ruroo. It was adapted into an anime in 2013, and has a manga adaption by Takashiro Kei. The plot revolves around Akabane Raishin, who enrolls in the Walpurgis Royal Academy of Machine Arts with his living automaton Yaya to seek knowledge and revenge.