Cat

Ara ara, Seobongi-nim. You mentioned just a moment ago that you were working hard, so you must be going through a lot. It makes me quite concerned thinking about how you struggled with the game's difficulty before. Please don't push yourself too hard, it's okay to take a break and go at your own pace.

It should take about 3 days, around 5 hours total lol Focus on upgrading reincarnation, skins, and weapons.

If you're just doing the exploration quests and hidden quests, you'll finish them faster than you think lol

I think the easiest way to grow is to just reincarnate, log in every 2-3 hours to reincarnate again, then push a stage before bed and repeat... lol