In the 25th century dominated by the ABOE four-gender system, a collective escape incident of experimental subjects tore open the world's calm surface.
"Twenty-Fifth Century: Experimental Subject Escape" takes the collapse of Tianyun Island Research Institute as the trigger, intertwining Alpha, Beta, Omega and the legendary Enigma gender laws with the dark secrets of human experimentation.
Shen Haobai, an S-level Alpha college student, lives a carefree and ridiculous life with the "contrasting cuteness" of strawberry-flavored pheromones. He lives a daily life between the instructions of the robot butler, the curious questioning of his Beta friends, and the campus homework.
The SSS-level Enigma test subject Wen Yan broke into the world with a gloomy undertone of a yandere and a ruthless attitude of being obsessed with Shen Haobai. He was a pervert born in the darkness, but he only focused on that sunny boy. (Brother Yan keeps the pheromones secret for now)
Among them, the healthy "straight man" Shou meets the yandere "warm man" Bai Qiehei. The ultimate tug-of-war and fateful entanglement of double purity have quietly begun in the storm of the experimental subjects' escape.
On one side is a fateful encounter with a probability of one in a million, and on the other side is the shocking secret of the gender system and human experimentation. This pursuit across light and darkness is destined to subvert the entire order of the twenty-fifth century.
Mission: Save the world and maintain peace