OSHI NO KO MANGA NO FURTHER A MYSTERY

Unbeknownst to him, Aqua's fraternal twin sister, Ruby Hoshino, is definitely the reincarnation of Sarina Are inclinedōji, amongst 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 admirer who killed Gorou. The enthusiast later commits suicide, but Aqua deduces that the murderer may ha