Overflowing is Embarrassing - S1.E1

Karin is almost having a regular day at school, but then a new transfer student comes to her school. When Karin finds her new victim and injects her blood into her victim's body, and Kenta sees the whole thing! The next day at school, Karin and Kenta talk, Kenta possibly finds out her secret and Karin has a huge nosebleed...