Black Room Warning! the Yandere Girlfriend Arrives

[The yandere and gloomy female protagonist × the dedicated and persistent male protagonist, two-way redemption, HE, double purity, 1V1] Shen Shuangshuang suffers from snake essence disease, which has become a bit serious recently. According to the plan, she walked towards her former sweetheart step by step with a room full of cameras, injections and chains. Maliciously showing him his rotten insides. Little did she know that the person who once lifted her out of the quagmire didn't mind lifting her up a second time. *** When Shenshuang is ill, she always likes to bring up old things again and threaten Congyi: "Believe it or not, I will lock you up again?" Little did he know that the submissive man was searching behind his back: "How to show vulnerability" "How to get your girlfriend to focus on you" "What is a service boyfriend?"