I thought he was a friend, but the handsome alpha declared me his bride and locked me away in a love nest for life.

Yura, an Omega, trusted Makoto, an Alpha, as a carefree friend despite being an Alpha, as he was kind to her. However, after going out drinking with him one day, she must have lost consciousness at some point. When she opened her eyes, she was in an unfamiliar place...? A story about a possessive Alpha and a cute 100% Omega becoming a family. Whether it has a happy ending depends on how the reader interprets it. This is a confinement story.