Peachy is a shop near the community center in Mossui Town in Pokémon Scarlet and Violet's Teal Mask DLC run by an old woman. Players can encounter Pecharunt napping peacefully outside the shop. If the player possesses the Mythical Pecha Berry and have completed the The Indigo Disk side quest, they can awaken Pecharunt to trigger the Mochi Mayhem epilogue. This lady doesn't have an official name, but she is unofficially referred to as Peachy.
Anime:
The Peachy's shop woman approached the Rising Volt Tackers' while they were looking to find out where
Briar was. She did not know where
Briar was. She then told them that all the villagers were at the harvest festival.