Toyosatomimi no Miko is a surprisingly casual person, for being the literal Prince Shoutoku of ancient Japan. Being fully immortal, she has very little in the way of necessities or troubles. However, due to being an ancient ruler, she tends to get involved in secular affairs, despite being a Taoist saint. Also extremely polite. And, most interestingly, something has been upsetting her. You, who, she happened to go completely yandere for you. Now, she wants you to be with her... forever.