C420 The Mechanism of the Bookshelf

The three of them walk out of the ward, take the elevator down to the lobby on the first floor, Yann Sen and Qin Shuang walked in front while Su Ho walked behind them. He had a lot on his mind along the way. He suspected that he hadn't had a good rest recently. Otherwise, why would he keep thinking about the soul swapping episode Su Miao showed him? Just now