What is a stallion protagonist?

An OP protagonist with lots of female partners to satisfy his ‘needs’.

When Hale Ravenswood, the world’s number one assassin, gets transmigrated into the loser childhood tormentor of the protagonist of a stallion novel, he must figure out how to escape this minor villain role without getting reaped by the protagonist’s metaphorical scythe of death.

Unfortunately, any attempts made by Hale to get out of the protagonist’s influence only seem to draw him closer…