Pecharunt is a small, mochi-looking Pokémon. It has two forms it takes during and outside of battle. The first form resembles an upside-down peach-colored dark pink. It has a black circle at the center with white frown-looking white eyes. The second form when it opened up revealed a dark purple body with a small light purple face two white eyes and a ribbon-shaped mouth. It has a white circle on its head with two dark purple circles-like eyelashes. It has a purple ponytail with a light pink end. The bottom has a horn with black paw-like symbols on each side. It has two small dark purple hearts for hands. The other shell becomes two floating arms. The inside of the shell is black with five light purple lines connecting to a bright circle with two horns from top to bottom.
Pecharunt feeds the Toxic Mochi it produces to other Pokémon and humans. The mochi draws out other's desires and potential abilities, but others who taste it become chained to its will and become controlled. It stores its poison in its peach-shaped shell. It can disguise itself as toy and remain asleep for many years. It can be awaken by the Mythical Pecha Berry.
Humans under Peachrunt’s control have their eyes purple and purple aura. The possessed humans also holds their arms while preforming the chicken dance, repeating the words Moochi constantly. Though on some cases like with Nemona, the possessed human can say more than one line. It can even command humans or even Pokémon to fight for it in Pokémon battles. Pecharunt is capable of controlling multiple humans at once. It relies on others to fight for it due to its size. However, Pecharunt will fight back if mind controlled minions fail it. Capturing Pecharunt will free those under its control with no memories of being controlled.
It is the creator and the leader of the Loyal Three, in the past, it transformed these three Pokémon using the Toxic Chains it created, granting them their wishes and supposedly, their Poison Type. The trio follow Pecharunt loyally and they were together when they encountered Ogerpon and its partner.
Pecharunt is the only known Pokémon capable of learning the move Malignant Chain. It is also the only known Pokémon that can have Poison Puppeteer as an Ability.
Origin
Pecharunt, together with Okidogi, Munkidori, Fezandipiti, and Ogerpon, may reference the Japanese folktale of Momotarō. The tale relates the titular Momotarō, a boy born from inside a peach, who traveled alongside a talking dog, monkey, and pheasant to fight a band of oni (a Japanese folkloric creature commonly equated to ogres in translations). Pecharunt appears to represent Momotarō himself. Its outer shell covering resembles a bisected peach or Pecha Berry, referencing how Momotarō was found as a baby inside a cut peach, also resembling a peach pit.
Name origin
Pecharunt may be a combination of peach, Pecha Berry and runt or petulant.
Momowarō may be a combination of 桃太郎 Momotarō, 桃 momo (peach), and 悪し waroshi (bad or inferior; the classical Japanese form of 悪い warui) or 和郎 warō (boy).
Dokutaro may be a combination of Doku (the Japanese word for poison) and Tarō (a Japanese full or part of a name meaning eldest son. Though most likely comes from Momotarō as well)