At Seiyou Girls' academy, there are rumors of an angel. Roommates Hina, Rin, and Fumi all have completely different personalities, but they all experienced 1 strange event: They all once saw an angel in their youth. They gradually begin to suspect that one of their roommates might be that angel.

At Seiyou Girls' academy, there are rumors of an angel.

Our story takes place at the end of their second term, just before Christmas.

Hina, Rin, and Fumi: three girls that became roommates since spring.

The three of them all come from diverse backgrounds and have completely different personalities, but they share one strange similarity:

They all saw an angel when they were younger.

And they all gradually begin to suspect that one of their roommates might be the angel they've heard about...