Isekai de Seikishi no Hakooshi Shitetara Toutomi ga Sugite Seijo ni NattetaIsekai de Seikishi no Hakooshi Shitetara Toutomi ga Sugite Seijo ni Natteta; 異世界で聖騎士の箱推ししてたら尊みが過ぎて聖女になってた

Milena, the "Saint" of the time, was widely known for her overwhelming magical power that was unprecedented in history. However, in reality, Milena used to be the OL Dorota in the previous life! So Milena "boxed" the three reigning paladins, and her extraordinary love for them raised her position. The days of the precious activity of Milena, the cheat-class saint, will now begin!