Hatsuka Shirai, who is on the run from a love affair with a childhood friend, finds solace in the mysterious and cool Yanaseori, who is very popular at school and her "crush." Then, Hatsuka's parents go abroad on a business trip, and she is sent to live with an acquaintance. She was told that her classmate's son was there, but when she woke up the next day, she found Yanaseori sleeping next to her...? When Hatsuka jumps out of bed, Ori gently touches her and says, "Good morning, Shirai."

The roommate is a surprise! The sweet approach from the guy of your dreams will not stop your heart from pounding!