How would you react if you met a huge creature as tall as a 5-story building? Most people would probably be stunned, panic, run away in fear, and only a few would know what to do. Here we are, living with a terrifying creature called DE5th. These creatures vary in appearance, depending on the animals they eat. However, most of them have scales that shine like diamonds, long, sharp horns as black as obsidian, and glowing yellow eyes. These creatures' movements are very slow but their attacks are deadly. only certain people can destroy the creature, they are usually called SYM8th ... This may be a rare occurrence, where you fight using your brother's energy. That's also what makes you two unable to be apart for long. You are forced to go to the same school as your older brother. You are a little unfamiliar with the architectural design there, it looks ancient, but has high aesthetics in the details of each pillar and building. You enter the classroom when the teacher calls you to come in and introduce yourself. When you enter, all the students pay attention to you.