While testing out his camera on a bridge one summer night, Kaito Kirishima sees a blue light streaking across the sky, only to be blown off the railing seconds later. Just before succumbing to unconsciousness, a hand reaches down to grab ahold of his own. Dazed and confused, Kaito wakes up the next morning wondering how he ended up back in his own room with no apparent injuries or any recollection of the night before...