The Day of Darkness and Light

It was an originally peaceful afternoon, but because of a belt, time and space changed. Light and darkness collided. The four protagonists also faced very powerful enemies. However, everything was just a sign. Everything had just begun. The four protagonists saved it and saved the planet in danger. However, because of family ties, they had to be confused by what they saw in front of them. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.