He's My Only Vampire

When Kana, a student at St. Agatha Academy, unexpectedly encounters her long-lost childhood friend Aki in the bustling metropolis, the gears of destiny begin to turn irrevocably. Shortly after this fateful reunion, she suffers a catastrophic accident and is pulled from the brink of death by none other than Aki, who has become a vampire. To survive, Kana must surrender herself completely to him as his exclusive thrall, bound to him in both body and soul. This profound submission marks the beginning of a perilous new existence where her life is no longer her own, tethered forever to the supernatural being who saved her. As Aki’s devoted servant, Kana is thrust into a treacherous conflict centered on obtaining demonic powers known as STIGMA. This dangerous pursuit forces her to navigate a deadly game where the stakes are nothing less than her survival. The very powers that could grant strength also threaten to bring about her ultimate destruction, placing her in mortal jeopardy once again. Bound by an unbreakable pact and surrounded by unseen dangers, Kana must endure this harrowing trial, knowing that failure in this supernatural struggle could spell her final end.