Tarou Kabakura, a third-year high school student and captain of the boys' volleyball team, is constantly being harassed by his underclassman Hanako Koyanagi, who is in charge of the girls' team. Koyanagi insists that since the girls have a match coming up, Kabakura should give up the courts to let them practice. When he refuses, she pulls out photographic evidence exposing his secret hobby. With the danger of his entire team finding out about his otaku interests looming over him, Kabakura agrees to hand over the volleyball courts to Koyanagi, giving her some private coaching as well. As the two grow closer, they begin to forge an everlasting bond. [Written by MAL Rewrite] Third OVA—covering the "employee trip" chapter(s) from the sixth tankouban volume—will be bundled with the special edition of the 11th and final volume of the manga which ships on October 14, 2021. (Source: MAL News, edited)

Having slept through all four of her alarms, the energetic Narumi Momose finds herself running late for her first day of work at a new office. As she races to catch her train, she makes a promise to herself that none of her coworkers will find out about her dark secret: that she is an otaku and a fujoshi. Her plan goes instantly awry, though, when she runs into Hirotaka Nifuji, an old friend from middle school. Although she tries to keep her secret by inviting him out for drinks after work, her cover is blown when he casually asks her whether or not she will be attending the upcoming Summer Comiket. Luckily for her, the only witnesses—Hanako Koyanagi and Tarou Kabakura—are otaku as well. Later that night, the pair go out for drinks so that they can catch up after all the years apart. After Narumi complains about her previous boyfriend breaking up with her because he refused to date a fujoshi, Hirotaka suggests that she try dating a fellow otaku, specifically himself. He makes a solemn promise to always be there for her, to support her, and to help her farm for rare drops in Monster Hunter. Blown away by the proposal, Narumi agrees immediately. Thus the two otaku start dating, and their adorably awkward romance begins. [Written by MAL Rewrite]

Somewhat based on the real story of how Gainax was founded, Otaku no Video addresses all aspects of an otaku lifestyle. Ken Kubo is a young man living an average life until he is dragged into a group of otaku. Slowly, he becomes more like them until he decides to abandon his former life to become king of otaku—the otaking! Mixed in are live-action interviews with real otaku, addressing every aspect of hardcore otaku life. Not only are anime and manga fans included, but also sci-fi fans, military fans, and other groups of Japanese geeks.