My Happy Marriage (Light Novel), Vol. 3 - Akumi Agitogi

After months of staying at her fiancé's side, Miyo is finally invited to the Kudou family estate to meet her in-laws. Far from receiving a warm welcome, however, she quickly learns that Kiyoka's mother has no intention of accepting her as his bride. But that's not enough to make Miyo give up on finding a way forward. Meanwhile, Kiyoka heads to a village to investigate rumors of supernatural phenomena...