Battle: I, Kiana, am Origami Tobiichi's Older Sister

[Not a time travel][No system][Light yuri][Will not enter the harem but the Queen of Ten Thousand Females physique will probably be activated]

One night 16 years ago, a child was taken in by the Tobiichi couple by accident, and everything changed from then on. 16 years later, Kiana, who was originally an ordinary high school student, accidentally learned that her sister Origami Tobiichi's true identity was actually a member of AST because of a space earthquake. Because of this accident, she also learned the identity of her own elf from another personality in her body. The scene five years ago was played out in her mind again. What choice should she make in the end?

This article is not about time travel. Let me repeat, this article is not about time travel, and it has no system. It is just a simple parallel time and space, a previous civilization, a world that may appear if the collapse is solved.

It's basically just a mix of Date A Live and Honkai Impact 3rd, so there are destiny and resilience, but there are none for World Snake. After all, under normal circumstances, there will be no more Honkai Impact 3rd. However, the Paradise of the Past does exist, but it is located in Taixu Mountain, which will be described later.

One more thing, Kiana will never enter the harem, never

[Finally, we do not rule out the possibility of domestic violence on rooftops in the future]