Don't look at the title of the book, it's purely rhyming. (I won't give you a name, thank you)
A newly arrived military advisor with a disabled leg and a slightly mentally retarded general who dislikes his physical integrity form a physically disabled and strong-willed combination. In the early stage, enemies will be happy (not necessarily), and in the later stage, the whole family will be happy (not necessarily). Supporting each other in the undercurrent of the royal capital, from the battlefield to the court, their feelings are deep.
Intention: To harm oneself