@0987 there also a historical manhwa about a doctor that reincarnated from the modern world and if remember correctly his master is sick and his trying to find a crure, I'll quickly go check my history and tell you the name brb.
BL is Life, BL is Love, BL is everything, Bow down to BL 
When life gives you lemons make lemon flavored lube, y'all going in dry that's why life hurts so much
When life gives you lemons make lemon flavored lube, y'all going in dry that's why life hurts so much