Don't Hold Back, Hug Me.

[A dog-like, obsessive seme x an unconsciously handsome uke - Contract BL] A rare disease called "Demon Child" causes demon-like horns to grow. Yase, a demon child with two horns, decides to form a "buddy system" with Kotarou, who has unstable control over his demon abilities, to stabilize them. Since "close love" is important for stabilizing his abilities, the two increase their contact, but then Kotaro kisses him!?