Self-improvement, mortal attack x poisonous mouth, soft heart, immortal king suffers
They are both biological sons, they are absolutely not abusive, but they are not sweet, the plot is not trivial, and there are no surprises.
Updates from time to time (senior high school students?)
The angle of view is uncertain, attack appears first
The number of words in each chapter is variable. I hope you don't mind. I'll just write when inspiration comes. If you like it, I won't cheat.
Intention: Lovers will eventually get married