Vinegar Doppio

Vinegar Doppio (ヴィネガー・ドッピオ Vinegā Doppio)[2] is an important side character and major antagonist featured in Vento Aureo.

Doppio is The Boss' younger, more innocent and eccentric underboss. As a member of Passione, he thinks of himself as the most loyal subordinate to Diavolo, but in reality, the two are separate souls inhabiting the same body.