Ah, Walfas cut-ins are all the rage, so I suppose I'll do one up too z.z;

And, now for a Perfect Memento-esque summary
Effort and Possibility: Gabriel HyakutaRace: Human (?)
Ability: Transformation of Impossibility into Possibility
Threat Level: Low (?)
Human Friendship Level: Above Average
Main Place of Activity: Gensokyo's Borders
Often seen around the edges of Gensokyo and occasionally seen walking past them. Despite being apparently human, she's not known to fear anyone and is generally very approachable. She's often known to help return wayward humans to the outside world or the human village as necessary.
One story says that she was seen burying a book in the ground. When asked why, she reportedly said that it would turn into a tree that produced books. When pointed out that this was impossible, Gabriel said "No, it isn't". A couple years later, a small shrub was found with an abridged version of the original book growing on it. The status of the tree is currently unknown.
Despite her friendly nature, it is advised not to ask what she's doing wherever she is. She's been known to casually brush this off at first; but repeated pressure for her to answer have been known to result in fits of dangerous anger to human, youkai, or goddess alike.
Humanity is uncertain. Although she displays no specifically Youkai traits, she appears in the margins of several of the Gensokyo Chronicles, so she has clearly outlived a human's lifespan.