Kina Mochirugi, an office worker, wakes up from her sleep with an unfamiliar voice saying, "You were restored from a fossil."Exhausted from her work, what appeared in front of her was a stuffed creature. The creature, which calls itself the "Hill Tribe", fights against the "Ma Tribe" that threatens them.She restored her as one of the ferocious human races that had perished 30,000 years ago. She was confused, but she couldn't resist the cuteness of the leeches.Then, it is discovered that her "stroking" has a dangerous power...!!! Yurufuwa post-apocalyptic fantasy opens!