Shoujo Senki Soul Eater

This narrative is derived from an adult game titled "Shoujo Senki Soul Eater," created by Lune. Ryusuke faces imminent abduction by the entity known as Kimaira. His elder sister, Misa, intervenes to secure his safety, offering herself as a substitute captive. Determined to rescue her, Ryusuke seeks out his companions and encounters Mikoto. Mikoto reveals she has also suffered an assault by Kimaira, an event that resulted in the loss of her own family. Their meeting is interrupted by the sudden appearance of Byakko, which launches an attack on Mikoto. In response, Mikoto undergoes a transformation into a being called a "Soul Eater" and engages Byakko in combat. She is ultimately defeated and subjected to a sexual violation. Witnessing these events leaves Ryusuke in a state of profound despair. However, Mikoto resolves to pursue vengeance against her aggressors.