A SECRET WEAPON FOR OSHI NO KO MANGA

Unbeknownst to him, Aqua's fraternal twin sister, Ruby Hoshino, is definitely the reincarnation of Sarina Have a tendencyōji, one among Gorou's patients who was a supporter of Ai. Four decades afterwards, Ai is murdered before the twins by the exact same enthusiast who killed Gorou. The admirer later commits suicide, but Aqua deduces which the mur