most likely on purpose. She and kawakaze did the same with a christmas song post #3714470
What's going on...?Child, you bottom is in the open, repeated ~♪
She exchanged ittoushou, "first prize", for satoujiou, "repeated".♪ Watching the bear cubs, illicit love~ ♫
Yuudachi is singing a popular children song, "Ningentte Iina", but she's exchanging some words.
Here she changed kakurenbo, "hide and seek", for yokorenbo, "illicit love".