LITTLE KNOWN FACTS ABOUT OSHI NO KO MANGA.

Unbeknownst to him, Aqua's fraternal twin sister, Ruby Hoshino, will be the reincarnation of Sarina Are likelyōji, amongst Gorou's patients who was a lover of Ai. 4 years later, Ai is murdered before the twins by exactly the same enthusiast who killed Gorou. The enthusiast later commits suicide, but Aqua deduces which the murderer can have experie