逆罪行進曲 (Gyakuzai Koushinkyoku)

Background
Let's more forward, let's move forward. Let's move forward together.

The story of a leacherous man. A man enters a realtionship a woman, but realizes that his affections won't last forever. He later meets a new woman and cheats on his girlfriend with her. Eventually the girlfriend is either murdered or becomes all the more mentally unstable and leaves him. The man then enjoys his new lover however he states that should a prettier woman come around, he will repeat the process again.

The song is featured on Machigerita-P's fourth album, Kattekudasai and his fifth album, Shiawase ni Naretara which also included a cover of it featuring MEIKO.

This song has entered Hall of Fame