Psychopath and Stalker BL manga

Kaoru falls in love with Shu at first sight and decides to kill the previous occupant in order to live in the apartment next to Shu's.

After a while, Kaoru moves into Shu's apartment, approaches him as if nothing happened, and the two become friends.

One day, Shu goes to Kaoru's room and notices that his picture is plastered all over the wall…

English edition