Good, you've already done the Remnant Epic, which was part 1.5.

@Ric103LS

Optional you can play lostbelt without clearing EOR

I made a mistake last year that slows my progression

I miss any good events that requires to clear following lostbelts

Because i played EOR first

I will save it for later

@RaineSora25 , Ok, but it turns out, luckily I finished Lostbelts 1 to 6 last year, but I think you can finish Lostbelt 4 before September, because there will be the Gudaguda event, where will you receive Servant Welfare: Iyo

And to participate in the new event in September, you need to complete Lostbelt 4.

After finishing the Remnant Epic, you can take the opportunity to do 2 Main Interludes.