To write an essay, Xia Xue began to study the little mouse. She not only let Liu Mei accompany her to watch "The Elf Mouse Brother," but also bought a small mouse to raise at home. Since childhood, Liu Mei, who is afraid of mice, has suffered hardships and was scared by mice. Worried and frightened, Liu Mei held a cat to calm herself. Xia Xue believes that stepmother is right against herself. Xia Yu and Er Pang let the white mouse fight the cat, and the cat ate the rat. Xia Xue wrongly thinks that Liu Mei did what Xia Yu did, and she is furious with Liu Mei. Later, the truth came out, and both of them had to give each other a gift. As a result, Liu Mei bought a white mouse for Xia Xue, and Xia Xue bought a cat for Liu Mei.
夏雪为了写一篇作文,开始研究小老鼠,不仅让刘梅陪她一起看《精灵鼠小弟》,还专门买了小白鼠在家养,自小怕老鼠的刘梅有苦难言,被老鼠吓得胆战心惊,抱了一只猫镇定自己,夏雪认为继母在和自已作对。夏雨和二胖让小白鼠和猫大战,结果猫把鼠吃了。夏雪错认为是刘梅所为,对刘梅大发雷霆。后来,真相大白,两人都要送对方一个礼物,结果刘梅为夏雪买了小白鼠,夏雪为刘梅买了猫。