Can someone please explain the ending I’m hella confused

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Yeah, the author rlly left many things out there in the open. But basically they all just went their separate ways. Nobody ended up with anyone else. It doesnt even specify what happened with the dad, just that he retired
At the end, the one who visits Yoo, the white hair brother, most certainly is Mc. Based on what Yoo said over the dealing part with someone it mustve been with the father. So ig the mc stood up to the dad.