Ryouhei ARISU

Ryouhei Arisu is a high school student who is bored with his life. He is intelligent and analytical, but he feels like he is not living up to his full potential. One day, he and his friends Karube and Chota are playing in an abandoned building when they are transported to a strange and dangerous world. This world is called "Borderland," and it is a place where people are forced to play deadly games in order to survive. Ryouhei and his friends must use their wits and skills to survive in this world, and they soon find themselves caught up in a battle for their lives.