Who Killed Sanemi Shinazugawa In Demon Slayer?

Shaina has always feel inferior to her older sister who always steal what she wants, when her first love was taken by her, Shaina decided to outshine her this once and that is to get married before her older sister does. After a night lie, she found herself entangled to Samael, a thousand years Demon who has taken interest in the human world. The Demon seeks a remedy to the growing dark power in him and after accidentally encouter with Shaina who asked him to become her husband for a night, Samael felt he has found his soulmate and his cure. Will the two different beings have a lasting love? Or will their worlds break them apart?

A 25 years old boy named John is suddenly shot by his friend, which results in his death, but is reincarnated again as the new Demon King. Unfortunately, he agains dies in a battle. This time also he is reincarnated but as a human. Follow Vis' adventure as he gets revenge, becomes a demon and makes his own harem.

Year 2013... In 1675, our ancestors made peace with some group of people called the hunters.. They were a small group we call the Hunter's clan. Sometimes we just called them... The Demon Hunters. They believed we were hiding demons into our village but the truth is, we don't. We believe Demons to be the devited workers and servants of the devil himself. Yet, this hunters didn't stop believing... Until one day... One faithful Night the hunters came. Smokes everywhere, houses burnt to the ground, homes shattered and lives taken. They killed them all... When I say 'them' , I meant my people, my families. They took all of them, one.. by.. one.

After three years of gathering herbs, I finally returned to Green-Pouch Valley. But my master, Mr. Gu, was not there. On the ground, only a dark red pool of blood remained, soaking his cloth robes. My senior brothers and sisters, usually so lively, were nowhere to be found. My master's wife, Auntie Qin, sat collapsed beside the pool of blood. Her once-black hair was now mostly white, her voice a hoarse whisper as she called to me. "Shuang'er, your master traded his life for the valley's ascension. You must go to the Nine Heavens and offer your thanks." It was only then I understood. The Celestial Lord, Jun Che, in his quest to forge an immortal body for his mortal wife, had coveted my master's rare Celestial Bones of Healing. He used the promise of ascension for everyone in Green-Pouch Valley as bait, then brutally tore the bones from my master's living body. I was born with a strange affliction, a void where joy and sorrow should be. The others in the valley secretly called me a cold-blooded monster. Now, as I stared at the blood-soaked robes of the man who had saved me and treated me like his own daughter, my expression remained blank. "Auntie Qin, did Master do this willingly?" Auntie Qin's eyes instantly reddened. "Jun Che is the Celestial Lord. His word is heavenly law. How could we ever defy it?" I gave a faint nod. "If it was not what Master wanted, then Jun Che deserves to die." Auntie Qin's face went pale with fright. She lunged forward and clutched my arm. "Shuang'er, your master's last words were for you all to protect yourselves, not throw your lives away fighting an unwinnable war against the heavens." I pried her fingers off one by one and looked up at the glittering, golden Celestial Realm beyond the clouds. A faint smile touched my lips. "Auntie Qin, Master taught me that a healer's heart must be compassionate." "But he never taught me that gods can't be killed."

Serra is a normal senior high school student who works really hard every night and weekend to pay off her parents' debts from loan sharks. But when she couldn't keep up with payments anymore, she decided to end her life. Surprisingly, she woke up in a different light-- in another world. What's more shocking was when she is addressed by one of the people as the demon king's bride.

Esteria, the queen of the northern human kingdom, was finally getting married to the vampire prince of her dreams. What began as a treaty between their two kingdoms had blossomed into a courtship where she had truly fallen in love. Life was perfect until darkness cast its shadow over her happiness. Her beloved vampire betrayed her, delivering a fatal blow. With her last breath, she made a desperate deal with a Demon God. "You will have to become my mate to gain the power to exact your revenge," he whispered in her ear, sending a shock through her dying body. This Demon God was not only breathtakingly gorgeous and immensely powerful, but he was also dangerously seductive. Now, he was offering her a deal that promised both vengeance and peril. Esteria’s mind was a storm of grief and fury. Could she handle the Demon God’s insatiable desires and the deadly power that came with their pact? Or would she be consumed by the chaotic demands of this new, dark world? "I will kill both of them. I will draw their last breath with my sword and burn their bodies with my fury," she vowed, her determination as fierce as the hellfire she now wielded.