Tenseisha no Watashi wa Oshikatsu suru Tame Seijo ni Narimashita!

Iristella finds herself reincarnated in the realm of a game she was deeply engrossed in during her previous life. To rescue her beloved character — Adolf, the knight commander who is fated to meet an unavoidable demise — she ascends to the role of a saintess and even enters into a contract marriage with him!! Now that they are living together, will she manage to prevent Adolf from facing his tragic destiny—!?