Sinopsis
Minjae pushes Jinwoo away after five years but now ends up being suppressed by his pheromones. Another person who came to Minjae with a headache, Hyunwoo. Hyunwoo starts to shed tears at his reunion with his missing first love, Minjae, who disappeared. To make matters worse, Minjae even got a heat cycle. A story of three people that begins when everything goes awry.
(Source: Lezhin Entertainment, translated)