First do some coin boost and stamina discount for map run, that will help player a lot.
Especially stamina discount, if Nutaku can do it on event map or / and whale map just like DMM do, player will be please.

Second put the special evol mats map to help player grind evol item, especially petals that seem very rare on Nutaku.
Do DMM have this kind of map?
Yes DMM have this map for at least 2 time since I play, and I stock a lot of petals from it.

Last... try to catch up with DMM more. You know what I mean Nutaku Dev.