A 28-year-old otaku and his 22-year-old fujoshi girlfriend exist in the same apartment, speaking the same language of fandom obsession, and the show treats this as completely normal. Ninety seconds is barely enough time to breathe, but that's the point, it moves like real conversation between two people who get each other without explanation. This isn't a love story dressed up in anime. This is two nerds who found someone else equally weird, and the OVA knows that's already the ending.
A 28-year-old salaryman who is an otaku himself dates a 22-year-old coworker named Yaoi, who is a fujoshi: a female fan devoted to boys-love stories. He goes by Chibe, and the comedy centers on the personal life the two share as a pair of otaku. This very short OVA runs about ninety seconds and adapts the Tonari no 801-chan manga. It was released as an opening animation bundled with the fourth volume of the manga, and it is billed as a comedy with a musical side.