日本火山高校

Jun breaks the rules by sneaking a small, adorable dragon out of the Crystal Realm and bringing it home, but finds that her older brother, Eugene, has arrived and watches her every move.。两人被人设计陷害，醒来后竟然发现身体互换了，只能用对方的身份生活，又会有怎样的惊喜呢？。