Ren Homura returned to his hometown, Kaminohara but he mentally stuck with the memories of that place. After he repeated his broken phone, he found a mysterious game installed in his phone called “Monster Strike.” With no idea about this game, he accidentally takes part in the chain of strange events.
After some time, he was attacked by a mysterious man and found himself trapped on the rooftop. This mysterious person came straight out of that game and chasing him to death. To safe his life he try to play hat game and bring out a monstrous creatures, a dragon name Oragaon. This Oregon turned out to be a tiny dragon with no secret powers.
