I Was Drunk And Made To Cum Violently, It Was Merciless Sex With My Loser Senior summary:

Not only is he good at work, he's also handsome and popular. However, despite of being such a perfect senior, Tachibana is actually a total scum! Yukine, a new employee who gets drunk at the welcome party, is supposed to be taken home by Tachibana, but he takes her to a hotel instead. When she's still half conscious, he keeps teasing her good spots... She wants to resist, but she doesn't have any strength...! He plays with her body until she becomes wet, and he makes her cum so many times that she's about to collapse...!