Love Hina Again is a three episode OVA that takes place after Love Hina: Spring Special, and thus expands the Love Hina anime story. Of special note is the art-style and risque humor of the OVA more closely resembles the manga than the anime, which can surprise some fans.

Keitaro Urashima has been accepted into the University of Tokyo and his sister, Kanako Urashima becomes the new manager of Hinata Inn. The denizens are not pleased with Kanako Urashima's rather intrusive and sneaky methods and wish Keitaro would return. When Keitaro does return, Kanako reveals that he had made a promise with her to run an inn together. Though Keitaro thinks of her as a sister, she does not see him as a brother and her goal is to win his love. (In anime, fictional adopted sister relationships are dramatic or humor fodder and generally not treated as incest.) Naru Narusegawa and Keitaro are nearly torn apart by her efforts, but manage to win out in the end. Keitaro and Naru destroyed the forbidden annex in the process and end up displaying their love on the spot in front of the other guests.

Although the Love Hina manga is generally regarded as superior, many fans in particular feel the total 90 minutes of the OVA are inadequate to cover the introduction of Kanako, a character already easy to dislike. Kanako, created mid-storyline herself also contradicts some established canon. Keitaro had previously mentioned no girl had ever been nice to him.