It's the main character from LUNAR DRAGON SONG.
He kicks things.
He's a delivery boy.
You don't get money from random battles.
I know nothing else about the game but it sounds like him.
Stat topic says it Jian.
1. I like to kick things. - Explained
2. I have to worry about my package, though. - Explained
3. My significant other has been working with me since the beginning, at least. - Plot has Lucia with him for a LONG time.
4. We've got to beat that monkey to progress the plot! - It's the first boss. He stole the package the heroes were supposed to deliver.
5. Man, I really wish we could get money off everything we beat, like all the other RPG heroes. - Explained.
Your move, Eph.