Okay. This is how I see this manga playing out:
- First, two love birds who ran away with the money end up becoming truly famous, strong, and powerful adventurers. They go on and live otherwise successful lives.
- Because this manga's tags don't indicate any gore, I can rest assured in saying nothing bad will ever happen to the love birds. They will go out and try to move on, but guilt and/or legal troubles will plague them.
- The MC and his party members who were also robbed will go out and try to see if they can find the other two, but will be unable to find them. Because of this, the party is, for the most part, will disband. The MC will work "hard" to achieve his dreams.
- The MC will work and save up once again, this time gaining fame as well. His fame will precede him, and he will be able to acquire all the jobs he could ever need.
- The two love birds will end up losing all their money, either from a gambling problem, misfortune, or another theft (which would be ironic). They will be depressed, forced to look for work again.
- During this time, the two will hear about the MC and his amazing feats. The man will realize how much they screwed up; the woman will become either extremely jealous, or may try sucking up to him and try to seduce him (though I doubt this; the manga does not have neither an "ecchi" nor "smut" tag).
- The MC may reject the two as a faux-justice.