Diabolik Lovers: The Kite's Unintended Flight

Since ancient times, the mortal world has been a boundless sea of suffering. Why do strife and conflict never cease in times of chaos? Though covered in wounds, I believed that one day, waiting would bring healing. My last shred of faith was cruelly crushed in a sea of blood. Without you, how am I supposed to scrape out a wretched existence? [Previous life] "Child, have you lost all hope in this world?" In the darkness, a man with silver-white curls reaching his waist spoke in a low voice, his tone calm and even. "As the eldest daughter of the Sakamaki family, offer your blood and loyalty to protect them, until the end of your life." "Yes, Father. As a spear, my destiny in this life is to keep moving forward..." The girl slowly dropped to one knee, her gaze empty and vacant, accepting the fate that awaited her. Clinging to a meager hope, she wished to be reborn. She pleaded so desperately, until she was forgotten and cast into a dark vortex... Would she ever remember? She clung to her memories as if they were fragile threads. Was she reborn, or had she never been alive at all? What did her existence mean? She was the most dignified eldest daughter of the Sakamaki family. She was their gentlest older sister. She was their most loyal guardian. She was their most devoted servant. She was the most powerful piece on the chessboard. [This life] "Your loyalty and blood will be woven into a net, according to your fate and your duty to the Sakamaki family, and it will bind you to our side forever." Sakamaki. "You're no longer the eldest daughter of the Sakamaki family. As a discarded chess piece, where do you think you can go?" Mukami. "Teacher is always right. Don't even think about challenging their authority, even if you're the one I love." Tsukinami. She believed that her life had certainly spanned a previous life and this one. A paper kite flew across the sky, leaving no trace. After all, that trace had never been real. [Yanjiu hasn't finished watching the anime Diabolik Lovers. Most of the additional information comes from fan works and Baidu Baike.] [There may be original characters, but very few. They'll be clearly introduced, so enjoy the story without worry.] [As for the male leads you'll be able to pursue, not every character will be included, even though this is fan fiction based on an otome anime. Read at your own risk.] [Komori Yui may die. Read at your own risk.] [This is Yanjiu's original otome fan fiction. Please recognize it as an original work and do not plagiarize. Thank you for your cooperation.] Premise: