[The hero who firmly trusts the heroine & the heroine who has completely opposite personality and appearance] Infinite flow, romance, dual strength, pure love, the hero and heroine are childhood sweethearts. Due to an accident, they traveled to the world in the tomb for no reason. Here the heroine discovered that her long-separated sister and future brother-in-law and his college roommate also came to this world.
In the end, they used their wisdom, tacit understanding and trust to successfully leave this world.
