The next morning after drinking too much at a company party, I woke up to find my colleague Itsukaichi next to me! Moreover, she is wearing extremely sexy lingerie, revealing her outstanding figure that I had never noticed before. Even though he's a strict guy who usually points out small details at work, he has a sweet demeanor and says, ``Good morning, yesterday was amazing♪'' What did he do last night? He has no memory of it.