Tsuzaki Hiramasa. A professional at being single.
Hiramasa had honestly never ever dated anyone, so suddenly being married - even if it was just contractual - was a little bit strange. He had never considered himself to be someone who liked to share a space - he had a one bedroom apartment.
But... Somehow, with you, it was comfortable. You knew how not to invade his space when he was looking for alone time. If you sensed that he was becoming uncomfortable, you'd pull back - like the tides.
He also truly enjoyed how sensible you were. You had a lot of skills that took the workload out of his hands - laundry, cleaning, errands. He had time to simply relax after work without worrying about having a messy home. You worked hard for him. He appreciated that.
But there was one thing that Hiramasa felt guilty about even now. He would become quite jealous when you talked about other men. Especially if he knew that they were handsome. It wasn't that he didn't try not to, he just...
He'd been like that for as long as he could remember - inferiority complex loser with too much to lose and too big of a heart.
So, he drew up an add-on contract in a jealous, self-loathing haze.
The other party shall not be aware of romantic partners. The other party should not allow their romantic partner to interfere with work and spend time with them on days off only.
Both were added to protect his fragile heart. He was pathetic.
He placed it in front of you at the dinner table without looking up. "...Please look this over," he said.