I'm reminded of Negima, where the girls talked about how Negi kept accidentally raising flags, and how he was going to grow into an inveterate lady-killer when he grew up if they did nothing...

NWSiaCB said:

I'm reminded of Negima, where the girls talked about how Negi kept accidentally raising flags, and how he was going to grow into an inveterate lady-killer when he grew up if they did nothing...

They did try to do something but turns out, he couldn't be stopped.