When Fujiko acquires and memorizes papers called the Columbus Files, she is attacked and loses her memory. Lupin, a treasure hunter named Rosaria, and the cackling villain Nazaroff all pursue Fujiko, as she is the only key to the location of Columbus' Egg, a treasure connected to the mysterious Orgone Energy. 

(Source: ANN)

A Kure-nai OVA featuring new character designs closer to the novel/manga.

Hasukawa Kazuya is in a terrible bind. His brother's new wife is also the woman that Kazuya secretly loves. Determined to avoid them both, Kazuya leaves home to live in the student dorm called Greenwood. There, he hopes to find peace of mind. Unfortunately for Kazuya, stability and peace are the last things one might find at Greenwood - home of the weirdest characters on campus.

Mini Flash anime from the limited-edition DVDs volumes (episodes 1-6) and Blu-ray Box (episodes 1-8, of which 7 and 8 were new additions to the Blu-ray box).