A seemingly gentlemanly man working for a major trading company meets a busty girl he found on a matching app. After dinner, he eases Kokoro with his gentlemanly behavior and sincere talk, invites her to his house, and secretly mixes an aphrodisiac into her tea to put her to sleep... When she wakes up in a daze, her body is restrained and she is deprived of her freedom, and the man in front of her has transformed into a psychopath with a creepy smile on his face...