For Fang Zheng, this was not a particularly sleepless night.
For someone else, perhaps they would have tossed and turned all night, but for Fang Zheng, it was not something especially worth agonizing over. Yes, Sora was related to him by blood, but to Fang Zheng, that was merely a "background setting." Even though they had grown up together, Sora felt more like a childhood sweetheart to him.
Besides, even if something went wrong, all Fang Zheng had to do was take Sora back to the Main World and everything would be fine. So he had nothing to fret about. It was no big deal, and this body of his was condensed from his soul anyway. Once he returned to his own body, it would be a different matter altogether.
The problem was... other people's reactions would not be so easy to handle.
Fang Zheng had tried using Future Sight to see how the others would react upon learning that he and Sora were dating. Sure enough, while it was nothing to him, for everyone else, siblings being together was still far too difficult to accept.
Of course, if it were merely difficult to accept, that would not matter much. Fang Zheng did not live by other people's opinions. The problem was... everyone's endings afterward.
Sekai invited Sora out and demanded that she break up with Fang Zheng, only for Sora to refuse. Then the two got into a conflict, and Sekai killed Sora. Realizing she had killed someone, Sekai fled in a panic, only to be struck dead by a passing truck... Well, GAME OVER.
Yukina threatened Sora into breaking up with Fang Zheng, saying she would expose their relationship otherwise. Sora flew into a rage and smashed Yukina to death. Then, while leaving, Sora was so panicked that