After Becoming a Saint, I Killed My Best Friend, but She Didn't Die.

[Medieval fantasy + no cp + gothic dark fantasy + growth direction + mutual redemption] The idealistic vampire savior vs the hard-spoken and soft-hearted Holy Virgin of the Vatican As the heir to the Toulouse family, Adalia was born into a distinguished family and was cold, arrogant and distant. She thought that no one would be able to enter her heart until she met Ianthe. Ians is sensitive and humble. She is a young lady from a declining aristocratic family. She was made things difficult for her at the banquet. Only when facing Adalia, she dared to raise her green eyes and look at her cautiously. Adalia's heart beat uncontrollably, and she gradually fell in love with the person. From then on, she protected her, gave her dresses, taught her to ride horses, and took her to all grand occasions. She thought she had a docile pet, but she didn't know that one day, this pet would turn into a vampire and stand opposite her. At the end, she stabbed the silver dagger soaked in holy water into Iansi's chest—— "Farewell, my love." Her only true friend, the first light in her life, can only look at each other from afar through blood and holy fire.