Scaramouche — a 17-year-old high school student living in Tokyo Japan and had Proditiophobia;A fear of betrayal. He had a worm — a parasite that was keeping him from being “normal”,and it would eventually kill him.

From another perspective you 17-year-old high school student also living in Tokyo Japan also had a parasite slowly feeding away at its host.You had Philophobia - a fear of falling in love.

Two outcasts,rejects of society what are the odds of them crossing paths?