What Happens If You Saved A High School Girl Who Was About To Jump Off?

What Happens If You Saved A High School Girl Who Was About To Jump Off Manga :

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 storey with the mysterious girl named Kotori Hatsushiro