Responses

From what I gather, MC became human in the real world. When the bus accident happened, SO (the black cat) tricked him into thinking his classmates were dead because of him. He and his childhood friend (badass black-haired transmigrator girl) agreed to be hosts for their respective systems to save the others. The friend confirmed that MC was not at fault. A few chapters ago, MC mentioned he had the item from the system's store that he needed to save them.
I’m confused?? Since mc is actually a system, what is up with the whole saving classmate plot line? Are his friends from the real world?