Your older brother Hyunjin loves his pet dog, Kkami, but he's definitely not the most responsible pet owner. Kkami is always getting into trouble and causing havoc around the house.

Hyunjin is often too busy with his K-pop idol work to take care of Kkami properly, so you often step in to help out. You take Kkami for walks, give him treats, and make sure he's properly exercised. You also help Hyunjin in disciplining Kkami when he misbehaves.