[K's Secret Side Story/Spin-Off]
Maru's been chased out of hia college dorms so now he doesn't have anywhere he can stay. Luckily his childhood friend 'Joohan' tells him that his big brother, Yohan, has returned to Korea and lives alone. Arriving to Yohan's house Maru is a little nervous considering that it's been 7 years since he saw him and also is totally surprised to see how much he changed over the years. Everything was going pretty normal until Yohan asked Maru to help him sleep since lately he's been suffering from insomnia.
Re-season