It seems that she, after her sacrifice in Karst, got added to the pantheon of gods that the priestesses of KoHo are worshipping. You can interact with the statue by praying in front of it and receive Kaho's blessing.
In the boss fight, Kaho keeps distance between her and Haegok. She shoots Haegok with her bow, a weapon that she also carries in Momodora: Reverie Under the Moonlight. She cannot be defeated in the actual boss fight, but instead pauses for a while when reaching 0 hit points.
Kaho is also indirectly mentioned by Sarina of Ishlith, as she mentions "Back in the day, a girl dressed in white just like you purified this land from evil... I wonder what happened to her ...?"
Momodora: Reverie Under the Moonlight
In Momodora: Reverie Under the Moonlight, Kaho is promoted to the position of the main character. As a priestess from Lun, she hoping to gain an audience with the Queen of Karst to save the land from its curse.
She uses a leaf from the sacred Lun Tree as a weapon, with a bow as a secondary weapon.
- Her name can be pronounced either "Ka-ho" or "Kay-ho" according to rdein in his developer stream.