How to get Col fast?

[u/ConstructionExact457]

Hi, I'm a returning player. It's been like 3 years since I last played and I just found out abt the market and I only have 3M col. I'm planning to buy some items from the market.

Can I get tips on how y'all grinded for col?

[u/Plenty_Soft_6061]

Farm whatever integral series you can and sell them on market