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".