Flower and The Beast (Hana ni Kedamono)

Other name: 花にけだもの / Hana ni Keda Mono

Synopsis:
Kumi is a transfer student at a prestigious high school. She meets Hyo who is handsome and kind. Kumi falls in love with him and has her first kiss with him, but Hyo is famous for being a womanizer at school. After she discovers his true side, she gets hurts, but her feelings for him don’t go away.