Toshiaki Honjou a.k.a. Pon was a student at Suzuran and a sophomore by the time Harumichi Bouya came into town. He is a member of the Ebizuka Trio with Hiromi Kirishima and Makoto Sugihara. His trademark accessory is his face mask, but ditches it in the latter end of the series in an attempt to land himself a girlfriend. In his second year at Suzuran, Pon, together with Mako, confronted Bouya for attacking Hiromi. Pon lost the coin toss to fight Bouya, thus had to witness Mako's loss against him.
After this, the Trio realized that they needed Bouya's strength if they wanted to challenge Hideto Bandou, who at the time was trying to gain control of Suzuran. The four men teamed-up and continued to hang out with each other even after Bandou's defeat. Along with the Trio, Pon co-formed the Harumichi Family.
Pon is a hotheaded character who prefers fighting to talking, which makes him a vital part of the Harumichi Family. Like the other members of the Trio, Pon became fast friends with Bouya when the two shared the mutual struggle of finding girlfriends. Pon has even accompanied Bouya to go girl-hunting on numerous occasions.
After Pon graduates from Suzuran, he finds work as a mechanic and runs his own garage. When Fujishiro Takumi leaves school to find work so he can look after his family, he works as a mechanic under Pon. Pon gets into comical situations with Takumi, accusing Takumi of purposefully not introducing his female friends to him.