Pinkun (ぴんくん Pinkun?) is the mascot character and serves as a maid character in Akiba's Beat. He claims to be the familiar of Saki Hoshino after she saved him when he was in danger—which was when the two had their first encounter, her genuine carefree personality accepting him even though he was a deluseon.
He carries the title, "The Resistant Vile Pretty Mascot" (品性下劣なプリティマスコット?).