But Brother, My Old Enemy Is My Wife.

The cool and beautiful brother is attacked by the sexy little puppy brother NOTE⚠️: 1. Stand up for a wealthy family, don't take it for granted. 2. Sometimes there is some nonsense, probably because the author doesn't know what to write. 3. The protagonists are all adults. 4. The character has no prototype. 5. The writing is not particularly good, sorry. 6. Don't curse the characters. Concept: The old enemy is the wife.