User blog comment:AquilaeAltair/OnS Theories (S3). Sixth Theory - Mitsuba Sangu, a girl that saw the heavenly sky before the catastrophe/@comment-36009152-20190823163104/@comment-38762161-20190903035448

I really hope she has more appearances, I really like her pure heart in the story; she's sweet and kind despite being a tsundere.

Mitsuba has her inner strenght and I think in the final battle, she'll reach it and yes, I based on the 17th volume haha. It proved a lot that Mitsuba had a nice life despite the chaos her sister had to endure to a certain extend.

I hope that both sisters end up in a nice relationship at the very end