Synopsis: Starting on the first day of school, Hiro met a girl at their class that looked like he hadn't seen it before since he was in middle school. Hiro observes her really carefully, and he notices that the girl seems to have some deep thoughts just by looking at the girl's eyes. As their first class was finally over, Hiro then already packed all of his stuff and was about to go since he was the only one left at his classroom. But as soon as he was walking in the hallway, Hiro suddenly saw someone running hurriedly at the school's rooftop, Hiro suddenly got a bit worried and followed that person. But not until he saw that it was the girl he saw from there classroom earlier, and as he noticed the girl was about to jump, Hiro hurriedly grab the girl as he already knows that the girl might gonna commit a suicide. The girl suddenly got shocked, as someone was grabbing at her waist. As for Hiro he grabbed the girl forcefully and they both accidentally got faced to each other. After that day the girl introduced herself to Hiro. And a sudden sparkle these two suddenly got an affection for each other. and after a few months they started dating. Hiro seems to live a normal life. As they were dating together. But Ai seems to have to have an addiction on commiting suicide attempts, due to her personal problems. What would Hiro will do, to make sure that Ai's Suicidal thoughts will eventually might change into an opposite in the future?