Oshiete Kudasai! Shirasu-kun

Synopsis

Kohinata Nobara, a wealthy young lady, transfers to a high school near her home to become independent and live a new life! Everything outside is new and exciting! Her new school is full of the delinquents she's heard about...?!?!? On her first day at school, she's harassed by delinquents, but an even more flashy boy comes to her rescue... (Source: Shogakukan, translated)