Wang Teng and the others went back to school after handing over the mission to Chief Xin.
Wang Teng didn't interfere in the battle with Lei Hui until he was out of options. Even when Hao Zhengxing and the others got injured, he didn't move.
There would always be injuries during a battle. Wang Teng could ensure their survival, but he wouldn't protect them like a nanny.
Thus, after completing the mission, they went back to school to recuperate.
Chief Xin's reply came quickly. He added another 200 school credits in the afternoon. Wang Teng accepted it readily. 200 school credits were enough.
As for Lei Hui's heart issue, he received a reply too.
Lei Hui's heart position was different from a normal person's. It was slightly to the right, not a special ability because he turned into a dark apparition.
Wang Teng heaved a sigh of relief when he heard this. It would be heaven-defying if dark apparitions couldn't die after stabbing their hearts.