Lacey Longs for Freedom: The Dawn Witch's Low-Key Life after Defeating the Demon King Volume 1

Now that she’s defeated the Demon King and become the country’s greatest mage, Lacey has officially fulfilled her life’s purpose. All that’s left is to spend the rest of her days in a loveless political marriage. But when her engagement is broken off, Lacey realizes that all she wants is to live freely. Her wish is granted, and she moves into an empty mansion near a sleepy village. Settling in is hard for her; shy and self-effacing, Lacey doesn’t know anything about living on her own! She can fry legions of monsters, but frying up a meal? She’d rather starve. Luckily, her friends have her back; with the support of the community, her former party member Wayne, and a monster pet, Lacey slowly learns to take care of herself and come out of her shell. Meanwhile, Lacey’s worth becomes clear to the townspeople when she solves their problems with magic that’s both unconventional and spectacular. So begins Lacey’s newfound calling as a magical handywoman!

[From J-Novel Club]