Satsuki is a loud, brash girl with a cocky attitude—at least toward everyone except Moroha, whom she's practically obsessed with. She and Moroha share a classroom with Shizuno, but Satsuki's the type to keep her distance from most people, treating them with barely concealed disdain. That said, she'll jump into danger without hesitation to help someone in need, which shows there's more to her than the arrogance.
The reason for her attachment to Moroha runs deeper than typical classmate friendship. Both of them have memories from a past life where they were siblings—and the relationship between them went beyond what siblings should have. In that life, Satsuki was a princess named Sarasha, and they loved each other intensely. Now that they're unrelated in the present day, she's determined to make him fall for her again, and it's hard not to notice the way she looks at him. She's great at cooking and always makes sure Moroha gets proper meals.
Satsuki's family moves constantly to escape attacks from Metaphysicals, which has made it nearly impossible for her to maintain friendships over the years—her attitude doesn't help matters either.
As a Savior, Satsuki is a Shirogane-type fighter who specializes in light-based abilities. Her weapon is a short sword called Acieal that materializes from her powers. She can sense Metaphysicals approaching before they arrive, giving her an edge in combat. She's also learned to manifest Kongoutsu, an armor of pure light that shields her from direct attacks and significantly boosts her speed.
Content compiled by AnimeList.moe from publicly available sources.