Echoes of the Abyss: a Rewritten Life and an Unforgotten Heart

Li Chengrui × Qin Yuan (Powerful Experimental Subject × Pi Shuai Nian's attack) The experimental questions of escaping and the love between teenagers are getting better and better every year! The lost boy met his light after escaping, and slowly grew up, and the two fell in love. Intention: Haven't thought about it yet