Sister to Seinaru Zange

Sister Lily is a kind-hearted woman who is in charge of a small village church. She is beloved by the local community for her gentle nature and devotion to her duties. One day, a young boy from the village named Chris accidentally witnesses the sister's secret affair. The scene burns into his mind, leaving him with a throbbing ache in his lower body that he cannot understand or control.

However, the sister knows that he has been peeping on her. Instead of scolding him or driving him away, she makes a surprising decision. She invites him into the confessional, a place meant for repentance and absolution. There, she offers him a chance to confess his sins, but the encounter quickly takes a turn toward the forbidden. The boundaries between sacred duty and personal desire blur as Sister Lily guides Chris through an experience that will change both of their lives forever.