Love Hina S01E22 - Little Sister Mei's Devious Plan: It Can't Be!

Naru's younger sister Mei shows up at Hinata House and tries to convince Naru to return home. When Naru refuses, Mei blames Keitaro and hatches a scheme to pair him up with Mutsumi instead. With Kitsune's help, the plan unfolds... trapping Keitaro and Mutsumi in a situation that's more than just close quarters.