Chapter 280: Magic and Qi.
Haru took a few weeks to settle back down at home. He was constantly kept awake due to nightmares about what happened that day in shanghai.
Haru felt like he could change everything if only he had the chance to go back and do it all again, but he saw his worries as pointless as time went on.
There wasn't any way he could go, and he concluded that he was holding on to a dream, a dream that could never come true. He felt sick of wasting his time and energy on things that had already happened and decided to take his mothers advice.
Living in the past wasn't good for his mind. He was running in circles, and he would never be able to grow if he carried on, so he buried the thoughts deep into his mind so they couldn't see the light of day again.