What is the relationship between John Wick and the Continental's concierge, Charon?

John Wick, the famous hitman from the John Wick movie series, has an interesting relationship with Charon, the concierge at the Continental Hotel. Charon is a stoic and professional figure who helps run the hotel, which is known in the criminal underworld as a sanctuary for assassins. While John Wick is a guest at the hotel, he interacts with Charon on several occasions.

Charon is polite and accommodating to John Wick, but he also knows when to draw the line. When John Wick asks for a meeting with the hotel's owner, Winston, Charon denies him at first, citing the hotel's strict rules. However, when John Wick becomes embroiled in a conflict with the High Table, the Continental's governing body, Charon proves himself to be a valuable ally.

Charon helps John Wick navigate the complicated world of assassins and provides him with essential information and resources. While their relationship is based on mutual respect, it is also defined by the fact that they are both part of a criminal underworld where violence is often the answer.