On the face of it, Hiroki Azuma calling otaku "Database Animals" seems self explanatory; you only have to look as far as sites like MyAnimeList or AniDB to understand the near feral desire to categorise and analyse and verify. Were that the whole story, Otaku: Japan's Database Animals would be an unfulfilling read which thankfully is far from the reality.
If that sounds a little like an otaku Escher painting you're not far wrong
Coming from Minnesota Press, the same publishing house house as Beautiful Fighting Girl, Robot Ghosts and Wired Dreams as well as the Mechademia series, the book is in good company with its academically targetted, psychological study of otaku as a recent cultural phenomenom. Indeed core to the book's central theory is that otaku are very modern, only coalescing in the early 1970's.
Another series another lascivious story seed, this time with the formation of a high school underwear club by a girl smitten with all things underwear. Rolling one's eyes and ploughing into the first three episodes of Chu-Bra!! it becomes increasingly apparent that this isn't the naughty teenage giggle parade that is expected from such a premise. Instead it is a charmingly sexless celebration of a girl whose passion is looked upon with disdain by the prudish or antagonistic students of a school that is all but aligned against her, a situation easy to relate to in principle if not in implementation.
Hiroki, who suffers from a rare form of underwear paralysis
At the entrance ceremony of middle school, Nayu embarrasses herself by tripping up when called to give the opening speech; this also inadvertently exposes her adult underwear to an unsuspecting student body who begin to circulate rumours about her partaking of compensated dating and other less wholesome activities. In reality however Nayu simply loves underwear, despite her adoration resulting in her being a pariah since junior school, it takes some investigation but two classmates, Yako and Haruka, discover the truth behind Nayu and become fast friends with her. As Nayu's confidence grows she suggests the formation of an underwear club, however this is met with resistance from the uptight head of the more generic handicrafts club and finding members proves an uphill struggle, even if she is wearing the brassier and panties her grandmother gifted her.
