Wang-Gu jerks off to relieve himself while Woo-Hee is sleeping in the same bed. Woo-Hee gets aroused listening to him. Woo-Hee catches her husband kissing a co-worker.
After a big argument with her husband, Woo-Hee takes Wang-Gu to a hotel using an excuse, where they proceed to have sex for the first time. Meanwhile, Wang-Gu's ex-wife and the biological mother of his daughters is also introduced.