[Karuno Kamo] Tonari no Onee-san (Part1&2)

Aoi-san turns her shrunken young neighbor Taiki-kun into a plaything for increasingly bold games, hiding gachapon prizes across her towering body and daring him to climb toward her massive, bare chest while she giggles at how tiny he's become. The playful treasure hunt melts into a steamy bath where she asks whether he truly meant to be her boyfriend, and his flustered yes transforms her sweetness into something deliciously possessive—vowing that once his size returns, she'll shrink him down all over again. A size-difference fantasy of an insatiable older onee-san and the tiny boy caught between embarrassment and helplessness under her overwhelming curves.