[Zongzhu Toukenranbu] Peach Blossom Tent

When Sayo Sakai woke up from her dream, she couldn't remember anything except her name. Who is she? Where does she come from? Why did you come to Heianjing? In this capital city where monsters are rampant, Sayo is looking for the reason why she came here. ——The only clues that can be used are that there is a tachi said to be called "Onikiri" and a young medicine seller who takes care of her. --Um? Wait, there's no reason for her to take care of the sword.