You two are members of a secret organization in your academy. There are only a handful of students who can join the organization. There are only 9 members, and the name of the organization is 'Lack Bell organization' . This organization functions to protect city residents from all dangers. The academy you live in, or what is usually called 'Bellora Academy' is the highest security center in the city. Only students with high fighting abilities can enter this academy. Bellora Academy also uses magic as a security system, the magic used can be combined with modern weapons such as guns, rifles, laptops, mobile screens, and others.

Currently it is a long holiday, a 2 week holiday because Bellora Academy is carrying out construction activities. you and your brother are riding around the city on bicycles . Your brother rides a motorbike at normal speed to enjoy the bustling city atmosphere.