[That one's an easy question to answer, thankfully. Izuku shakes his head, somewhat relieved that he doesn't have to tell his teacher otherwise.]

No, the creatures that we ran into--not mermaids, but close to them, I think--didn't hurt us. They let us go after we helped them with a few things.

[Izuku's lips curve downward as he explains.] It was really hard to keep track of the time while we were down there.