[Xikius]

actually, Naru is a guest star in one of the Mao-Chan episodes (early twenties, i believe). takes place a couple years after the manga ending in Love Hina. this is the basic goings-on of it:

Spoiler:

the girls in mao-chan take a vacation and stay at Hinata Inn (it's now a regular Inn, not a dorm). Keitaro and Naru now own and run the Inn together. Naru shows up as their host throughout the episode. no Kietaro