Saikyou no Kyuuketsuhime wa Imouto ga Hoshii!! Manhua

In the mystical realm of Lysandra, whispers abound about the legendary vampire princess, Seraphina, whose beauty and power are unmatched. Many brave souls have ventured to her castle, never to return. One fateful day, a young orphan named Leo stumbles upon Seraphina's domain and is welcomed with open arms by the alluring princess. As Leo spends time with Seraphina, he discovers her deepest desire - to find her lost younger sister, Luna, and to share eternity with her. Moved by Seraphina's longing, Leo embarks on a dangerous quest to uncover the truth behind Luna's disappearance. Along their journey, they encounter a colorful array of characters, each with their own agendas and mysteries. Through the shadows of betrayal and the glimmer of newfound alliances, Leo and Seraphina navigate the treacherous path ahead. As they face enemies old and new, Leo discovers a reservoir of strength within himself, while Seraphina learns the true value of companionship and love. Together, they must confront the past to secure their future. With each step closer to the truth, Seraphina and Leo forge a bond that transcends fate itself. "The Strongest Vampire Princess Wants a Little Sister!!" is a tale of resilience, loyalty, and the enduring power of hope. Join them on an odyssey that will test their resolve, redefine their identities, and cement their place in the annals of Lysandra's history.