Invincible Twins in the City of All Realms

A new era has arrived, and countless dimensions have merged into the earth. There are comics and fantasy here. There are online games and there is reality. In this context, there are two people. Since their birth, they have only been able to control each other's bodies. They are in this extraordinary city... "Absolutely invincible!" X2 This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.