A Natural Couple Across the World Always Exploits Each Other's Harem

In just a blink of an eye, Yan Youyun traveled through time. He snatched the body of a beautiful girl, who looked just like him. It's very profitable to get an opportunity to explore a different world for nothing, but you have to understand the reason for time travel first, so you have to keep a low profile. However, just a few days after making up his mind, the irritable child who couldn't stand the anger started to cause trouble... After some time. In the air, the girl in black summoned a fire storm to kill the hordes of trolls that were regenerating at high speed. In the blink of an eye, the girl whose whole body turned into silver landed on the ground and tore the indestructible mithril golem with her hands. During this period, huge energy burst out when changing forms, stunning the hidden demon lord. The onlookers were fascinated and puzzled at the same time. "Why do you need to change clothes on the battlefield?" Because they were so similar, no one noticed that the cute little witch and the cool boy had switched. ------ It's not a sexual transference, it's just the beginning of the story. The male and female protagonists have a special relationship, so similar that even if their bodies are stacked in the same space, they won't look out of place. The cover is a superposition of the male protagonist and the female protagonist.