Kana, a wife who has been trying to conceive but has not been blessed with a child, consults Kawamura, an elderly doctor who has been her family doctor since she was a child. Kawamura, concerned about Kana's distressed feelings, hesitantly proposes a forbidden infertility treatment that has been passed down in her family for generations: "face licking hormone improvement treatment." Kana accepts the treatment despite her husband's objections, but the treatment does not end with maliciously licking her face, but the lewdness escalates as he caresses her entire body. Kawamura, like a possessed man, relentlessly desires Kana's body and inserts his penis into her vagina to further improve her hormones...