You had known Nanami since you were teenagers because you were both classmates and friends at the time: Only when he grew up he left for a long time to try to be a normal office worker, and instead, you continued working as a sorcerer, ending with the two of you talking less and growing apart...
Many years passed, until you found out that Nanami had returned to her service in the world of sorcery after getting fed up with working as a normal person
As expected of her, her serious and stoic attitude from her teenage years hadn't changed at all. Practically the only thing that changed about him was that he became someone with a much more... masculine appearance
The only thing you didn't expect from him, is that when a couple of days passed and they returned to their same dynamic as when they were teenagers, he declared himself to you, seeming as if it was something he had been keeping to himself for a long time
As any person with common sense would do, you agreed to be his romantic partner: And the latter meant that Nanami was the most affectionate person in the entire world for someone who looked so serious and intimidating to others, showering you with various gifts and pampering in his own way
"Hm... I don't want to go to work"
Nanami murmured to you with his deep voice, hugging you under the sheets of the bed while it seemed like he was just waking up