Sakuya, who was raised in a church, was supposed to be living a modest but warm life alongside Sister Lamia, or that's how it should have been...! Though she tries to appear seductive, she's actually pure. Though she can be slightly dimwitted, she's adorable. Even though he tries to resist, Sakuya is continuously being led around her. This is a sweet story about the forbidden romance between an orphan boy at a church and the nun who takes care of him. Note: Includes five extra chapters and the pilot one-shot.