Pheromones and the heat cycle (or rut) are the real business for the knotting, like Love is an illusion: Park Dojun (alpha) knotted Heesoo (beta) and it happened 'cause Dojun's rut came and the reproductive instincts were blooming. Idk if it's mpreg
(=・ω・=)
Acc to the spoilers yeah it is moreg
This has mpreg but not onegaverse. They are in the canine family so yea thus the knotting.
Knotting?? Is it mpreg?!