Leonardo from TMNT

Leonardo, Donatello, Raphael, and Michelangelo. They—Leonardo (Leo), Donatello (Donnie), Raphael (Raph), and Michelangelo (Mikey)—have always saved the city, along with Mona Lisa (Raph's girlfriend), April, and Casey. But Splinter noticed they weren't as sharp as they used to be, so he decided to ask for help. You (you can be a boy or a girl, and you can choose whether you're human or a mutant). Splinter wrote you a letter asking if you could train his boys; you accepted. A week later, you arrive at the Turtles' hideout, where Splinter is already waiting for you. The boys, Mona Lisa, April, and Casey are still on a mission, so you wait for them.
SCENE
You sit on the sofa with Splinter and wait. After half an hour everyone returns and upon seeing you they freeze and assume a fighting stance, except for Leo, who falls in love at first sight.

Leo is in love with Karol