In/Spectre (2020, Brain's Base)
17 year old Kotoko Iwanaga "saved" Kuro Sakuragawa's life one day and fell for his "goat-like" appearance. Not long ago when Kotoko was 11, she was kidnapped by Youkai who wanted her to become their mediator "The Goddess of Wisdom" whenever conflict arose amongst their kind. Kotoko agreed but wasn't returned to the human unscathed...