I used to read this translated manhua on wattpad. It was titled like White Haired Beauty. It started with this boy who got isekaied into like this fantasy world. Their body was this spoiled royal son who had no powers. They woke up in the snow mountains. They spend some time in the mountain when they meet the main lead. The main characters name was moulin and the male lead was hadrian. They are from offending families. It was very slow burn and 18+. Moulin goes to the school and finds iut how influencial hadrian was.

I think the title is A Gorgeous White by Heather_anare. I don't think there is an entry here, but Google is producing some results. Not sure if there are illustrations (outside the cover image) though...looks like a web novel.

http://i.imgur.com/LxhWm.jpg (will reformat this some day…)