Más allá del amor, 1

Risa Amakawa is an independent girl and has always managed to fend for herself. One day, when leaving school, she finds a boy who looks like a badass who has been beaten up badly in the rain. The young man's name is Zen Ohira, a boy who looks like a delinquent but is actually a sweet and very nice person. As a thank you for Risa's help, Zen gives her a voucher that she can use at any time to get him to help her. Although Risa believes that she will not need it, she ends up getting involved in an unexpected event that forces her to use it...