NOT KNOWN DETAILS ABOUT OSHI NO KO MANGA

Unbeknownst to him, Aqua's fraternal twin sister, Ruby Hoshino, is definitely the reincarnation of Sarina Are likelyōji, one of Gorou's people who was a lover of Ai. 4 yrs later on, Ai is murdered in front of the twins by precisely the same enthusiast who killed Gorou. The enthusiast later commits suicide, but Aqua deduces which the murderer can h