Totoko is the Number One Idol-zansu!

New girl Kumiko (a parody of idol singer Kumiko Goto) moves in next-door to the sextuplets, and spurs jealousy in Totoko for taking all the boys' eyes away from her. Alongside Totoko's woes, Kumiko's dad resembles her dog, and that he's the superior to Mr. Matsuno at his company.