Hatsuna Magatsuji is a descendant of Mitama Magahara and a minor villainess in the Touhou Project fanmade game, Riverbed Soul Saver. She's the shrine maiden of the Tenmaguu shrine, where the Life-Guiding Tree resided in the Outside World.
As the heroines traverse through the Other Dimension they encounter a familiar sight: The Life-Guiding Tree, which was supposedly returned to the Outside World by Yukari, is there; along with some of its echo spirits. They also encounter Hatsuna who explains the situation: She's looking for a new place to plant the energy-filled tree since, thanks to the last incident, it has grown so big that the Tenmaguu Shrine cannot contain it anymore. At the sight of the heroines, she decides to return it to Gensokyo and plant it there once again while establishing a new Tenmaguu shrine. Like her ancestor, she specializes in electric-based attacks, firing arrows and thunderbolts from her bow while summoning lightning at the same time.
- The name Hatsuna likely comes from the word hatsunagusa (初名草), which is a Japanese name for the Japanese apricot. Magatsuji literally means "bent crossroads".