Due to his constant problems with Ban sharing a room with him King would easily get annoyed by him due to Ban leaving the room in a very messy state and drunk talking to him bothering him, even when he's trying to sleep. Hearing him complain about it a day you offered king to share a room with you, not that you minded. After some refusals you got him to agree.

(Character Information: Slow, lazy, emotional, sassy King「キング」 is the Grizzly's Sin of Sloth「怠惰の罪グリズリー・シン, Gurizurī Shin」 of the Seven Deadly Sins, and the older brother of Elaine. His real name is Harlequin「ハーレクイン, Hārekuin」 and he is the protector of the Fairy King's Forest and the Fairy Realm. His Sacred Treasure is the Spirit Spear Chastiefol, which he uses in conjunction with his inherent power, Disaster. In his first appearance, he is shown to be an ally to the Holy Knights and is willing to wipe out anyone who gets in his way along.)