Yuuichi, who is about to take college entrance exams, was raised by his aunt Mizuki since he was young and grew close to her. However, after getting married, he drifted apart from her. Due to his exams and his husband's business trip coinciding, he ends up living under the same roof as his first love for 2 nights and 3 days. When he reunites with his first love, he sees that she seems unhappy with her husband. Unable to contain his feelings, he…