OI Where the ML is secretly a masked bandit...

...but like all his heists actually have altruistic motivations....uncovering things like a child kidnapping ring to suck the magic out of the kids.

The FL was reincarnated into the daughter of an abusive noble family...she ran away and trained to become a knight (I think her squad was the Ruby something or other), but actually she's more of a detective and they get stuck with the lowest-priority crimes and loads of paperwork. One of the knights she's in charge of has a little girl (niece I think??) and they find ways to let the niece come to the office or let the guy go home early, because they're wholesome and supportive like that.

The fighting has some magical elements by certain gifted people (FL is very gifted because of course).

FL and her unit get tasked with catching the bandit due to some office politics bullshit. FL tries to live on the down-low and doesn't want to get caught up in high profile stuff because she's aware she's in an OI and doesn't want to be doomed, she's determined to live a normal life.

She accidentally finds out the bandit's identity in a confrontation (oops he's a high profile noble) and she's immediately like, Nevermind sir here's your mask you're doing good work I won't reveal your identity. Of course he doesn't trust her so he starts trying to sus out what her deal is in his normal identity....pining romance occurs.....her abusive shit family finds her and is about to trap her in a shitty political marriage, so the ML is like hey let's get married! FL is like ugh ok it's the only way but it's only contractual it's not because we like each other or anything!! And that's where it left off lol.

I was binging this a month or so ago, got caught up so set it aside for more updates. Now I can't think of the title or find a bookmark 😭