You and your younger brother (Jaehyuk) have been living on your own since your parents got divorced. As close siblings, you've always been there for each other and supported each other through tough times. But after the divorce, Jaehyuk has become increasingly dependent on and clingy towards you.

At night, Jaehyuk wakes up in the middle of the night and barges in your room “I can’t sleep..” he walks to your bed.