Tobioriyou to Shiteiru Joshikousei wo Tasuketara Dou Naru no Ka?

Yusuke Yuki, who has spent his entire high school life studying and working part-time in order to keep his special student tuition exemption, finds himself desperately desiring a girlfriend. On his way home, he looks up and accidentally sees a girl attempting to jump off the roof of an abandoned building. A strange encounter leads to a new way of life and a love story with the mysterious girl named Kotori Hatsushiro.