Bonkura Onmyouji no Oniyome (Light Novel)

Seri Nozaki has awful luck. Her apartment block has burned down and she lost her job, all on the same day. The one who reached out to her was the passing Onmyoji, Kouga Kitamikado. His recommendation? Become his wife! Seri, who is able to see Shikigami, is caught up in his nonsense, only to realise she's married a completely dimwitted (but talented) exorcist with not a yen to his name.