Wit's manga / #Underwear(2)

Top model does an underwear photoshoot where he falls for the designer thinking that the designer is into him too (he's not). So when an opportunity comes for them to work together again, the model is excited to pursue the unwitting designer

Blackmail, but the uke is very into it. After accidentally coming to school with no underwear on, uke goes to the bathroom and is caught by his kouhai. Naturally kouhai takes a picture and uses it to force the uke to come to school the next few days without underwear (and some other exciting stuff). It's hot and cute, loved it