It was established during King and Queen's introduction in the manga that Kaido had a new important business partner after Doflamingo's defeat though his/her name wasn't mentionned.
Who could be this mysterious business partner ? Is he/she someone we already know or could it be a new character ? What kind of weapons or other goods could he/she be trading with Kaido ?
Who could be this mysterious business partner ? Is he/she someone we already know or could it be a new character ? What kind of weapons or other goods could he/she be trading with Kaido ?