Can anyone tell me the name of the manga?

i was reading a manga but i dont remember the name. its about a girl who is poor and to help her mother she asked to be transferred to a technical school. when she transferred there she realized that she was the only girl there because all the other girls left the school because of all the fighting. the people there look like they would be in a gang and she accidentally won multiple leaders and had a lot of underlings. i dont remember the characters names but i think one is called yuuki. please help me.

Best Answer - Chosen by Voters:
Pretty sure it is Ah! Itoshi no Banchousama

Girl goes to school that had almost no girls because they transferred out. She accidentally knocked the leader out with her bag, and became the new leader

Other Answers:

Which name sounds the nicest?

As last name:
Cuddy
Hatcher
Benson

Best Answer - Chosen by Voters:
Hatcher sounds the best!

Other Answers:
definitely Benson (:
reminds me of Benny and the Jets for some god only knows reason lol but it kinda flows off the tongue a little easier :)|||Benson|||Benson|||Benson|||Hatcher|||Benson|||Benson

Cuddy sounds wrong
Hatcher sounds like hatchet|||benson|||benson|||To me...? Hatcher. :D