Warlock

Warlocks are spell-casters that get their powers from a powerful being. They are great for building a character with more situational abilities with unlimited uses, and for getting more deeply connected to the narrative.

In Gensokyo, there are a lot of powerful beings, but currently, there are two main subclasses:

• Oni Patron - Get overwhelming physical powers, some sly tricks, and failing kidneys, with help of Four Devas of Mountain.
• Sage Patron - Get involved in the constant maintenance of world’s balance, and do dirty work for beings that were involved in creating and shaping of a whole Plane of existence (Gensokyo, Lunar Capital, Netherworld, or Hell).

Official D&D subclasses like Fiend Patron can be used too, but it’s better to check in with GM or someone who knows Touhou well to direct you to a powerful character that fits the patron role for you.