Tsubamegumi ni Oideyo!

Présentation

At Maitori high school, group of scary looking men walk into the school yard to welcome and guard Tsubame, a girl they describe that she's like a princess to them. No one in this school knows a girl named Tsubame until she shows up as a new student. Surprisingly, she's a just a small girl and it seems like there's nothing special about her but when she slapped the most rich and powerful boy in this school because he laughed at her for being a small girl, that's a different story. Will she able to study peacefully in this school?

Source : AniList