Pretty much the same problem I currently have with FGO. They just have to stuff both Servants and Craft Essence in single gacha. More than once I pulled 5* CS while I would prefer even 4* servants over it. The lore and story is very well written though so it's definitely a plus. Quite addict to it right now.
For FKG... Guess once you can do it, next time it just much easier.
![[Chat Chit] DMM FKG-anothercleared.png](https://harem-battle.club/attachment.php?attachmentid=9498&d=1520338868&thumb=1)
This is, frankly, harder than Nidhogg ex stage since you need all 4 teams to survive on each routes. The last boss is easy though even with somewhat high HP.