小懒猫皮皮在上课的时候犯困了，迷迷糊糊中发现自己养的宠物老鼠竟然变成了自己的主人，而自己成了老鼠的宠物，而发生这一切的原因竟然是宠物一次次回答对了老师的问题，而自己因为没有认真听讲导致的。 The little lazy cat Pippi was sleepy during class, and found in a daze that his pet mouse had become his owner, and he had become the mouse's pet, and the reason for all this was that the pet answered the teacher's questions correctly again and again, and he did not listen carefully...