Hii, actually I kinda want to know too, that's why I decided to help you finding it. ヾ(❀╹◡╹)ﾉ~
I tried reverse searching I can’t find it for some reason
Hii, I don't know if it's what you're looking for, but the appearances of the seme and the uke is similar to what you described. But it has 70+ chapters, not werewolf, and in a college setting.
But I'm still not giving up, I'm sure I'll find the one you're looking for (๑•ㅂ•)و✧
Your the best, it was honestly on the featured manga list last year and I had it saved to one of my older accounts.. they might’ve taken it down ╥﹏╥
Bl it had I think less or around 20 chaps fully colored, the style was like a cartoonish style very unique. The top was a Werewolf and it was a school setting. Top black hair green or yellow eyes. The bottom brown hair I think he wore glasses. The top was hiding his identity cuz it’s a human school. Him and the bottom didn’t get along I think the top transferred later on to the school and he had a bad reputation. I can’t remember much details but I do remember that the bottom was kidnapped because of connections with the top and after he saved him I think the story came to an end it was very short.