Waltz with a Black Cat

Hirose is mad. Once again his boyfriend Matsui has cheated on him, with the sorry excuse of: \\\"Sometimes I wanna see a girl\\\'s boobs more than a guy\\\'s d*ck.\\\"Crying at a nearby shrine, Hirose curses Matsui... And the next day, outside Matsui\\\'s apartment, he finds a black cat with a scar just like Matsui! And Matsui seems to have disappeared...