Tomochika Dannoura is a high school student who, along with her classmates, got transported to another world by a woman called Sion. After being abandoned by her classmates, she quickly befriends Yogiri and goes into an adventure with him into the new world outside, hoping to find a new way back to their original world. She is very active, sometimes hot-blooded and has a good charisma.

Tomochika: "Thank you Yogiri! Due to your Instant Death ability, I was able to come this far. Although I am not comfortable with you killing people but we have no choice. We have to defend ourselves somehow. Wait!! Wake up. Did you just fell asleep when I was expressing my heartfelt gratitude? Geez!"

Tomochika: "Umm, I know it’s probably kind of weird to ask, but the two of us have never really spoken before... Why are you willing to go so far to save me? Aren't I a dead weight?”