The relationship between an oyabun [one having the status of a father or leader] and a kobun [one having the status of a child or subordinate] is expressed in terms of protection and service. The kobun offers absolute obedience, and in return the oyabun grants favors and offers his protection and influence

XREF: Parallels patron-client dynamics found across many societies, including mafia godfather relationships and medieval feudal bonds.

Diego Gambetta, The Sicilian Mafia The Busi…, loc. 817