Nice flashback for the students. We learned more about the human lives... but our Wakaba-chan—she’s gaining such skills! She can finally use magic, she got a third mind and, in the middle of the fight, she gained a fourth but she shut it up as soon as it appeared and that ending though! I feel like the final mind came up with a solution at the last second and the elf/sensei just doesn’t know that she’s a spider because there’s no way she’s aware of the situation in the lower levels of that place at that exact moment, to report her instant death or whatever. She’s assuming.