Baby Assassins: Nice Days

In Haesung's house, his wife Soojeong congratulates Haesung for having his book published. In the bathroom, baby Minho is playing inside a baby bathtub. Haesung hears a weird sound and runs into Minho's room. The sound of a splash gets louder which stops with a scream of Soojeong. Startled, Haesung opens the door to find Soojeong who is holding Minho, soaked with water and, covered in a blanket. She says there's been an accident.