Hymn of the Lazy Prince

Born in a post-apocalyptic era, everyone around me is so familiar, but everything is different. Growing up in the royal family, he was supposed to be polite and well-educated, but he was incompatible with young people; he was lazy, he was sad, but he slapped a lot of people in the face. He is the third prince of the Kingdom of Eagle, he is the little loser in the broken town, he is the good student in the library, he is the scheming guy of the ***... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.