A Girl, a Slave, and a Grill Pot
A girl meets a young Marisa in the park. She tries to carry on a conversation with Marisa, but gets annoyed when Marisa declares the girl her slave and starts making demands.
The girl takes Marisa and her sisters home and puts them in a few inches of water in a pot on a hot plate. Marisa tries to get out of the water by floating on her hat, but her Reimu sisters climb on too and the hat gets waterlogged and ruined.
When the floor begins to heat up, the girl suggests that Marisa try to get out of the pot, but the sides are too high for Marisa to jump over, and she smacks into the hot sides face-first, ending up burned and blinded. The other koyukkuris jump on top of Marisa trying to get out.
Crushed by her sisters and beginning to dissolve in the water, Marisa begs for help. Marisa finally says that she, Marisa, not the girl, is the one who's the slave. The girl laughs and turns the heat to high.