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By- Tora
Spoilers from what I've read
In fl past life she was a amazing school teacher, and helped parents. She becomes a tutor to the twins, who are rowdy and pulls pranks.
Didn't go deep into looking at spoilers, but the ML is the emperor. Even though his siblings even cause him trouble at times, he's still patient with them.
The twins do eventually let up on pranking, and getting attached to the fl after a prank went to far and caused her to get injured.