Zutto Dakitai to Omotteta -Kekkon Shonichi ha Kousai 0 Nichi no Joushi to-

On my long-awaited wedding day, the man standing by my side isn't my groom, but my boss!? I'd wanted my grandfather, my only family, to see me get married and decided on an arranged marriage… or so I'd thought. But, my groom left me at the altar!? My boss offered to marry me instead! Not knowing what to do nor wanting to see my grandfather sad, I ended up marrying him… That night, my boss tells me he's always liked me and pushes me down! He starts kissing me so gently I can't think. I feel so good, I make my way to the bed… and let him take my first time! What have I done!?