An, who's been told by her ex she is bad at sex, began using a matchmaking app in search of a longer lasting relationship. However, a pair of twin brothers, who are deeply in love with An since they met in university 3 years ago, soon found out about her affair. While out drinking with a friend and the twins, she passed out and somehow ended up being tied up on a bed in her underwear. "You'll regret it if you look down on men like that." An was worried that she would be assailed then and there, but the twins offered her a deal: If she could stay quiet for an entire minute, they will let her go immediately. Due to An's past experience with her ex, she confidently accepted, thinking she was frigid. However, the twins knew otherwise due to a past event. With great technique from the twins, she realized her own perverted fetishes. After the incident, the twins asked her out. Still unconvinced, she continued her matchmaking date, but thoughts of Kuzuha and Futaba still filled her mind...