馬小屋まで引きずられてって「どうする？逃がす？殺す？」ってな話になって、もう馬に悪さはしないという約束をさせられて逃してもらったそうです。
そんなお話。
にとりなら科学の力で引きずり込みそうですけどね(笑)
ちなみに釣りの仕掛けの先にきゅうりをぶら下げて、かっぱ釣りをするのもここです

From what I hear, the kappa was dragged all the way to the stable, where it asked, "What will you do? Let me go? Kill me?" It was made to promise that it would never do wrong to horses again and then set free.

It's that kind of story.

Nitori seems like she'd use the power of science to drag it in, though. :-)

Incidentally, they also do kappa fishing here, in which they hang cucumbers from the ends of fishing devices.