The apparent leader of the Baka Trio, Bacchi-Gū is an overweight, bespectacled pervert who has no shame. The arrival of beautiful girls to Kanenone seems to send him out of control. He does things such as drinking the bath water the girls recently bathed in, to making a nipple print of his own nipples so he can imagine they belong to a girl. Bacchi-Gū is considered to be the lead comic relief of the series and is the male mascot of Green Green.