Bewitching Smile

Mai Ninomiya is a 12-year-old girl whose parents are frequently away on business trips. They leave their neighbor, a young man she calls her older brother, in charge of looking after her. Over time, Mai has grown overly familiar and affectionate toward him, often seeking his attention.

One day, while he is trying to focus on his work, Mai becomes a persistent distraction. She vies for his undivided attention, and he decides to play along with her advances. Their innocent game soon takes a more intimate turn.