Sanae Kochiya

Sanae Kochiya is the main goddess of the Moriya Shrine and its former Shrine Maiden. She used to be a Living God herself until she committed to the Moriya ritual, transforming into a lamia deity. Due to living in the outside world before coming to Gensokyo, she is quite knowledgeable on the Outside World.

Ever since the Moriya Ritual, the new godhood corrupted Sanae into a tyrant of a goddess, killing, kidnapping, and devouring those who come her way.

General
In canon, Sanae was first introduced in Mountain of Faith as the stage 5 boss, reappeared as the extra stage midboss of Subterranean Animism and later became a playable character in Undefined Fantastic Object, Touhou Hisoutensoku, Ten Desires, Legacy of Lunatic Kingdom and Unconnected Marketeers. She is a secondary character in the comic Wild and Horned Hermit.

Appearance
In her human form, she wore a blue and white outfit similar to a shrine maiden's, with the blue areas covered in light blue polka dots and stripes. She has long light green hair, and yellow eyes (green in Undefined Fantastic Object and Ten Desires, blue in Touhou Hisoutensoku portraits). In Mountain of Faith, she wears a snake-shaped hair accessory wrapped around her hair on one side, and a blue headband with a frog's head on it (both probably meant to represent Kanako Yasaka and Suwako Moriya), however, in every subsequent appearance after MoF, she has instead worn a hair clip shaped like a frog's head. She carries a gohei with straight paper decorations as opposed to the typical gohei.

In her divine form, she retains her green hair but is drastically different. Her skin is now pink and covered in scales. Where her legs used to be now sports a long, green snake tail. Her bare breasts are also shown with ancient jewels on her nipples, representing the power she holds now. She also grew curved horns and a third eye from the transformation.

She is also able to gain up to ten arms depending on the circumstance.

Personality
When she was a human, Sanae was confident, energetic and dutiful, sometimes too much so, and tends to get carried away easily or have trouble thinking for herself. She also appeared to be something of a geek, making references to popular culture and having knowledge of advanced scientific concepts. As someone who grew up in the Outside World, much of Gensokyo seems strange and novel to her; she found great fun in "exterminating" youkai and solving incidents. She also may have somewhat of a complex about herself as an incident resolver, thinking foes won't take her as seriously as the other experienced youkai exterminators. The simple fact that she is adjusting to life in Gensokyo makes her an extremely rare case.

When she transformed into a snake deity, her personality flipped. No longer was she the confident and kind airhead that she was. Now she is manipulative, violent, and willing to show her superiority to even her former friends. Her personality twisted into that of a power hungry goddess who would do anything for more power and to have more followers.

She also holds disgust over her former human self, believing she was weaker than who she is now.