Originally Posted by paraphin

i think from mission 12 onwards. but it's not that you get one ampy a mission, they are very rare.
it's a waste, just farm the 80 stam event mission, you have the same chance of getting ampys there and you get more coins and LCs.
12-5 is only better with exp and gacha seeds. but who cares about that...

The main reason to farm 12-5 vs event 80 stam map is the high chance to get the 80 stam secret garden that is 3-4 manyu of lvl 20-100.
Gold wise event 80 stam and 2x12-5 are about the same with 12-5 giving more seeds on average but rarely LCs.

The main deciding factor should be this: Do you have 20 x lvl 70 gold+ girls yet?
If you do then event map is more worth for those LCs to buy Skillblooms (especially the 6* one per month).
If you do not then do event enough to max out the event girl then go back to 12-5 and manyu dailies to get those levels.