Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 1, Extra

Emperor Zi Yu used 5 strikes of his axe to split mountains and unify everyone underneath the heavens. He partitioned the land into 9 areas, thus establishing the Nine Cauldrons which eventually became known as the 9 prefectures.

Vahn was an atypical youth. Due to a rare mutation, his blood had the potential to target and attack ailments within the human body. Touted as a universal cure, people had elevated his status above the norm and given him the classification "Panacea". In the media, he was hailed as a great hero who would usher in a new era or human wellness. However, behind the scenes things weren't so bright. Being a unique individual, Vahn spent his entire youth locked up in a lab with various scientists and research teams using his body and blood to perform endless amounts of experiments. The only solace in his suffering was the various anime and manga made available to him between experiments. He often imagined himself as the protagonist in a world of his own, finally in control of his own destiny. For years he nurtured this desire, until at the age of 14 he died when an organization had tried to kidnap him from the lab...

The sky thunders, Fang Yue, the nail household, dies on the street, the heavenly court blackmails, obtains compensation, reincarnates, and sees how Fang Da Devil disturbs the universe and upset the world.

- Description from MTL

Aeliana Faelith is a Elven princess, battle-harden mage that is in a losing duel with hands of Lucian Valtheris—the Demon Lord and the man she once loved. But just before death claims her, He confesses her love—and takes his own life for her. In regret and pain, Aeliana screams for a second chance to save her beloved and restart their destined fate.The screen turns white, The Do-Over System grants her plea, She is then thrown back to the past, armed with her recent memories—of betrayal and heartbreak. Her mission is crystal clear: Stop Lucian before he becomes the monster she once faced.With multiple attempts on different timelines, The Do-Over System makes her choose one and that will be her final attempt and the Do-Over System will self-destruct permanently leaving her in the current timeline. She chooses a timeline out of 10 in which, she discovers she and Lucian had a child but Lucian is in a deep coma with amnesia and doesn’t know who she is—Will Aeliana be able to choose the ‘right’ timeline or doomed to save everyone? Is the child really theirs or a miracle honed to build peace between two opposing worlds then again—What is the price for falling for the Villain?Please support it with collections, This is an Cupid's Quill entry piece!!!