The Saint's Magic Power is Omnipotent (Light Novel) Vol. 7

Sei's many accomplishments as the Saint have earned her a slew of marriage proposals, and it's honestly kind of a nightmare. Fortunately, she has the opportunity to escape all that with a trip to the Hawke Borderlands, the ancestral home of her dear Ice Knight, Albert Hawke. Less fortunately, she must go there in order to cleanse a new wellspring of miasma and the accompanying swarm of monsters. Little does she know, Albert is hoping the expedition will bear fruits beyond mere monster hunting. Will the Ice Knight finally make his move?