I, Otaku: Struggle in Akihabara

I, Otaku: Struggle in Akihabara (壮太君のアキハバラ奮闘記, Sōta-kun no Akihabara Funtōki, lit. "Chronicles of Sōta-kun's Struggle in Akihabara") is a manga series written by Japanese author Jirō Suzuki. The manga is serialized in the shōnen manga magazine Monthly GFantasy. It has been licensed by Los Angeles-based company Seven Seas Entertainment for distribution in the English language.

Plot
The story follows the seemingly normal high school student Sota, who is popular and even has a girlfriend, but is in fact a closet Otaku obsessed with Papico, a fictional anime character created for the manga. He has been in love with Papico since grade school and is an avid collector of everything Papico. He is a closet otaku because of a traumatic incident that happened when he brought a Papico action figure to school as a child. He is more or less able to keep his obsession a secret until he meets and then is forever harangued and followed by Mano Takuro, the crazed owner of an anime collectible shop in Akihabara. Mano attempts to change Sota's life for (as far as he's concerned) the better, by trying to bribe Sota into dumping his girlfriend Eri, a lowly "3-dimensional" and not a perfect 2D character like Sota's beloved Pico. Takuro often follows Sota, at one point dressing up in a giant Papico doll outfit, trying to get him to convert. Sota eventually finds a fellow Papico maniac and dubious ally in his school friend Kenji, who has a passing penchant for cosplaying in Papico's frock, to the point where he wears his Papico outfit under his regular cloths at all times.