Board Thread:Questions and Answers/@comment-11700680-20170327165425/@comment-28112544-20170327212258

Taigei is super cute, but have very limited use in combat (6-1 routing, a lot of vets choose to skip anyway). Ryuuhou's resource consumption is low (good for overnight expedition) but once again her combat ability is quite lacking.

With that in mind, you probably don't wanna rush her unless you're one of those CG freaks kek. Chances are you'll run into her "accidentally" while farming event maps though her drop rate is quite low.

If you absolutely wanna farm her, I'd recommend 2-5 middle route.