The protagonist Mona is a young person of the new era. By chance, she travels to the Arknights, the world of Terra.

Life was good, I had found something I loved, and I had a place to call home.

It’s just that I feel like this place is involved in too many things, and I always get involved in some weird things.

Mona: Mom, I want to go out and have some fun!

Kal'tsit: ...

Mona: Doctor Kal'tsit? Boss Kal'tsit? Kal'tsit! Kal'tsit's mom!

Kal'tsit: No, you've been to the medical department seven times this month. We can't let you out again!

Mona: QAQ