[Two male protagonists + non-humans + world flood]
The savior's scientific research boss
Bai Sinan once traveled through time and became the pet of a (questionable) scientific research boss in the future. He had no memory. He only recovered a little memory before the end of the world. Later, he was forced to disguise himself as a woman to find the boss. The boss did not recognize his little pet and was very afraid of his abilities. Later, he gradually became attracted to him during the contact, but it was too late...
Purpose: convey love