This Article Contains Spoilers.
PROLOGUE[]
Your story begins at Frosty Forest, just outside of your home village. You were collecting firewood to sell but you took longer than expected. Upon returning to your home, you find that your family has been slaughtered by a demon. Filled with rage, you pick up your father's Rusty Nichirin and slay the demon, avenging your family. However, you are not satisfied with this outcome, and you make a pledge to discover the reason as to why your family was murdered.
MAIN STORY[]
After a while, your uncle Kohon arrives to help you bury your family. He is regretful that he wasn't able to arrive in time to help, but he agrees with your decision to uncover the reason your family was killed. He tells you to find Hayaka in the soup shack at Hayakawa Village. Upon arriving, you talk with Hayaka. She tells you to complete the Final Selection exam and become a Demon Slayer. From here on, your journey truly begins.
After completing the Final Selection exam and becoming a certified demon slayer, you head back to tell Hayaka. She is pleased that you have succeeded and tells you information about the murder of your family. It turns out that the demon you killed was not the murderer, instead, he was merely a decoy to throw the evidence behind. The true murderer was Muzan Kibutsuji, the Demon King. You find out that your uncle Kohon is a Retired Slayer in the Demon Slayer Corps. Hayaka then sends you on a quest to kill Okuro, the former Lower Moon 6.
When Okuro has been successfully defeated, he tries to tell you the location of Muzan Kibutsuji, but he gets silenced by Muzan Kibutsuji's curse before he can tell you the location at all. You go back to Hayaka and she tells you to speak to the leader of the Demon Slayer Corps, Kagaya Ubuyashiki. When you first meet Ubuyashiki, he sends you on a mission to eliminate 8 demons who are attacking a village. Once you return, he congratulates you and then sends you on another mission to kill some more demons and ultimately Rui, who holds the rank of Lower Moon 5. Rui is a String Demon Art user.
After you finish killing Rui, Lower Moon 5, you return to Kagaya Ubuyashiki and report to him. Afterwards, he'll give you a mission to exterminate 20 demons that are attacking Okuyia Village, mostly consisting of Higher Demons over Lower Demons. When you fulfilled your duty by killing 20 demons in Okuiya Village, an unexpected demon arrives, who holds the position of Lower Rank 2 and he uses Shadow Art.
After you stopped the Lower Moon 2, the Hashira meeting takes place in the Slayer Corps. Muzan Kibutsuji then sends 20 demons to attack the Slayer Corps, you and the Hashiras have to fight all the demons. When You finally stop all the demons, Muzan takes you and the Hashiras to the Infinity Castle. Yourself and Giyu Tomioka, the Water Hashira, will face the Upper Moon 3, Akaza, The demon uses Shockwave art. After you and Giyu Tomioka defeat Akaza the Upper Moon 3, You arrive at Upper Moon 2, Doma, The demon uses Ice art. You will fight the Upper Moon 2 with Shinobu, the Insect Hashira. After you and the Insect Hashira defeated the Upper Moon 2, the room changes, You meet Sanemi the Wind Hashira and the demon facing you is a Hybrid, the Upper Moon 1, Kokushibo, the demon uses Moon Breathing.
[TO BE CONTINUED]