It was back. The thing that had taken nearly everything from Yuma four years ago had left its job unfinished, and it wouldn't stop until it completed its work. It would take out anyone and anything that got in the way. Yuma's friends want to protect him, but the last thing he would do is let someone die for him again. He will not let it happen again, even if it costs him his life.

He should have died that faithful day but he didn't. Since then Yuuma have been living on borrowed time. Yuuma has come to enjoy his limited time by the side of his friends Osamu, Chika and Jin. What would happen if the short time was taken away? Now it's a race against time for his friends to save the humanoid neighbor. Will they succeed before the time runs out? - Trigger On!