I'll embrace all of you ~Zero days dating, then suddenly marriage?!~

Overview

"You're so wet, you're overflowing... I'll take of care of this for you." "Director... if you keep going... I'll cooome...!" —33 year-old bank employee, Kiyoko, has marriage right before her very eyes, but then one day her engagement is cancelled out of the blue. The one who comforts the disappointed Kiyoko is none other than her nemesis, Director Samejima, her superior. Loneliness on top of a few drinks, and the next thing she knows she's in bed, violently coming... The hard, hot shaft of the unapproachable director is now thrusting deep into Kiyoko, giving her a taste of unimaginable pleasure. However... The day after what Kiyoko assumes to be a no-strings-attached one-night stand, the director announces, "We got married"——?! (Source: Coolmic)

Source: AniList