Pekonia

Soniako is the femslash ship between Peko Pekoyama and Sonia Nevermind from the Danganronpa fandom.

Canon
Sonia is shown to be caring and nurturing to Peko. Peko tries to be as nice and protective around Sonia as possible in the anime. But these moments are both very flushed down since this ship is a crack ship/rare pair. Both of them have other people in their lives like Fuyuhiko and Gundham, but there has always been hints around the series to Peko’s and Sonia’s relationship.

In Sonia's Ultimate Talent Development Plan, at the Sports Festival, she is set as the captain of the basketball team. Between the options of what plans will she go with, if the player chooses "offense, offense, offense!", she may choose Peko to be a part of her basketball team, along with Akane. Sonia then yells to both girls "sally forth!" and Akane at first doubted but then she was determined on the basketball team, to the point that she gets wild.

Peko then asks Sonia for detailed info after pointing to Akane that they were doing basketball and not martial arts. Sonia apologizes for it, saying that she always wanted to say sally forth to both girls. After it, Sonia had set an "unbeatable" offense with her comrades. Peko doesn't share any interaction with Sonia in her Ultimate Talent Development Plan, while Sonia only had interacted with Peko once before but it was only for a short time.

Fanon
In most fanart, Sonia is shown to be excited to be around Peko, while Peko is trying to follow Sonia and her caring and bubbly personality and energy. Sonia and Peko’s personality’s both are good in a relationship. Sonia has a sweet, caring and nurturing personality. While Peko has a quiet and mysterious personality. These personality’s are good for each other because Peko would want to be with Sonia more because she is nice and caring to Peko, and Sonia would be more nurturing and kind to Peko and like being with and around her.

Since Soniako is a crack ship, the fan base doesn’t make much fanart and attention towards it. But there is still some fan art and Soniako shippers flying around somewhere. Soniako has more popular rival ships such as Sondam and Kuzupeko.

Fandom
FAN FICTION