This is a really good story. Reminiscent of A mortal's journey to immortality.
There's no romance and MC is neither dumb nor impulsive.
It's about a great solo adventure and the quest for immortality.
Just like RMJI, the first arc is just mortal stuff, it's only later that cultivation really begins. The build up is a bit slow at first but it's worth it.
Someone said MC's sister is dead weight, but I didn't get that impression at all. He'd send some silver to his family during the first arc, but that's it. None of his family can cultivate. I don't wanna spoil things but the family doesn't hold him back at all.