Onion-Tou (also know as Onion Head, Onion-kun, or his official name Abo) is an anthropomorphic, hyperemotive onion created by Taiwanese artist Ethan Lui as part of a series of characters collectively called The Onion Club.
The Onion Club, as of May 2011, consists of four characters: Abo (Onion-kun), Meiya (Onion-Mei), Greaser (the delinquent scallion) and E (the mangaka). Abo, however, is the character that is depicted the most frequently, having a near monopoly not only on fanart, but on the official Onion Club icons as well.