Kyuhyun likes living on his own. Sungmin likes being with Kyuhyun.
Kyuhyun has an apartment. Sungmin is always there.
Unfortunately, they cannot agree on toothpaste location.
Kyuhyun has something to say and Sungmin has something to hear.
Kyuhyun hates Sungmin's toothpaste but Sungmin loves him anyway.
Kyuhyun makes a decision about the toothpaste and Sungmin is surprised.