Pointbreak
So Leon has a little sibling coming I take it. Well Leon never wanted to be king so having a little brother to take the spot isn't bad, his position can be something similar to Grandpa Don. Though it isn't like Heinrich will be stepping down anytime soon, his lifespan is already over 1k years and in the future it wouldn't be too weird if he reached half-step true Divinity, so taking over for 100k years on the throne wouldn't be odd.