After five years of hiding a secret, one-sided love for his best friend, the protagonist is forced to temporarily move in with his crush. Completely oblivious to these hidden feelings, the friend insists they share a single bed and possessively marks him with heavy beastman pheromones. The fragile tension finally snaps when the friend's mating cycle hits. Driven by feral instincts, he makes a raw, explicit demand to fuck him. Are these ravenous advances just the heat talking, or something much deeper?