The male protagonist is the only heir of the first family. He has a poisonous fire inherited from the family in his body. He needs a woman to stabilize the poisonous fire. For this reason, he arranged a trial marriage on an island to complete the transformation of his life bit by bit.
It's a bit outrageous, a bit casual, and mindless. Don't look for three views in it.
There will be all kinds of weird things in this article, so don't take it too seriously.
A bit curious!