Heiki story is set in fictional version in the early 11th century in Japan where Power is the only true necessity. Manpower created a world full of chaos, most people are consumed with the desire for power and control that they willing to destroy anyone who is standing in their way. Those man with greed kill thousands of people each day.
Until the Japanese emperor who tried to stop the chaos made a spell which broke the timeline between 11th-20th centuries and led to huge destruction (Hakai).
With the broken timelines many greed and powerful people created weapons of mass destruction from their centuries and kill millions of people, until the legendary Gensui an Onna Musha named Kondo Kikuhime who lives in the town of Shinagaya in Heian Era gathered female warriors and named the clan Heiki . These stronger warriors from different centuries came together to stop the destruction and to fix the timeline. "The world isn't perfect and full of hatred, but it's there for us and doing the best we can to protect people we love. Whoever wins this war becomes justices"(Kondo Kikuhime).
These female warriors picked up their weapons to fight for this world, against oppression and bring peace to this world once again. They split from across different regions in Japan to complete their mission to bring down the manpower and offering protection and aid to those in need.
Each of these female warriors incredibly powerful in terms of physical combat and even these warriors existence are feared by even the powerful enemies. The top female warriors has their special abilities to turn themself into Monster or a kind of Yōkai, and Undead ability.
While the process of restoring the peace, Heiki clan has to accept the faith of betrayal from one of their elite warrior. Betrayal is an act that many people find unforgivable. In this world, it always happens because people can't show their true feelings which only leads to death and destruction. Shuten-dōji was one of the most elite warriors, she was worth more than a thousand other warriors. She betrayed the Heiki clan by killing Gensui and destroyed any form of loyalty that she once had.
How will Heiki warrior restore the peace while the hatred is spreading all across the country? How will Heiki warrior fix the broken timeline back and how will they stop Shuten-dōji ?
Heiki is the hope of this country, Heiki is the answer to all weak people that cry out for peace, Heiki is the protector of all the innocent beings in this country
