Hitsugi no Naka wa Kiiroi Bara

"I want to be taught how to kill people." Middle school student Ibaraki Sumika is curious about transfer student Hosogai Shuu, who has begun living in the Western-style mansion behind her house. The reason is that her friend Noe told her that Shuu has committed a crime and is on probation... (source: Birz Comics, translated)