In the eerie silence of the dark forest, no one dares approach the ancient Aya Koji House until professor Yamanobe and his assistant decide to investigate its strange phenomena. Granted permission by the owner Aya Koji, they step into a world of fantasy where big boobs and tempting figures draw them deeper into unknown mysteries. Tentacle presences and yuri tensions build the sensual atmosphere as explorations turn intimate and revealing. This hentai unveils layers of desire waiting to be discovered within the mansion's walls.