This is my try in creating urban fantasy using systems but it's hard to define the novel using just these two tags. It would cover most of the popular genres and tropes. Alright, writing any more would be considered a 'potential spoiler' so I'll get into other aspects of the story.
MC - Not the smartest person in the room, but one of the smartest person in the room. He starts as strong, so rather than going from 'weak-to-strong', he goes 'strong-to-stronger'. He gets hot-headed quickly but remains cool during dire situations. He doesn't have any special personality traits. His alignment is Lawful Good. At first glance, it's difficult to find his flaws but it's there.
This is a slow-paced novel. The reason being I want to develop the main cast as well as the side characters. I'll try to leave no one out. For the most part, it is slice-of-life. The world in the story is huge and I'm planning for a detailed world-building. Therefore, major plots which affect the main storyline will come late.
Lastly, yes. I'm not sure about romance but it's a harem.