[顔印象零] ある日突然7年前の姿になった大好きな彼を精通させてマゾに堕とす话

[Kaoinshou Zero] Aru Hi Totsuzen 7-nen Mae no Sugata ni Natta Daisuki na Kare o Seitsuu Sasete Maso ni Otosu Hanashi | The Story of Corrupting and Turning My Beloved Boyfriend—Who Suddenly Reverted to His Appearance from Seven Years Ago—into a Masochist