The triggering of the sub-plot happened in the afternoon, considering that the entire teaching staff at Derry Town Middle School could be problematic.
Acting recklessly at night in a middle school with no evening self-study was not a good idea.
In addition, a parasite specimen had fallen into Han Dong's hands; he could use the night to study it at home, potentially finding a starting point for the sub-plot.
The team decided to address the 'parasite school' incident tomorrow.
After school.
Cass, Koslin, and Sophia started exploring at night, working as a team of three.
Han Dong parted ways with the three of them, taking the parasite sample back home alone.
His mother had cooked steaks and a big pot of broccoli carrot soup, awaiting their return for dinner.
Han Dong merely pretended to be the 'son' as per his memory, and had a normal conversation with his parents at dinner about his day at school.