"Player". Mc in fantasy world trades with other fantasy and murim world. The focus is kinda on the murim world. MC becomes OP through trade of OP goods, not much through personal training, just by being a good businessman. It's a bit dull that way, but it is a decent read. Mc's motivation is to prevent the downfall of his family (he reincarnated to his youth).
erun steelguard failed in his last life to preserve his family name, this time reincarnated with knowledge of a dimensional trading system and op new powers
Enjoyed it even though there's a lot of loopholes and the mc's too op hahhhahaha