Bani's Questions (2)

I've been looking for this manga for ages now, I don't quite remember everything and pretty sure its a side story? The seme is popular in school and friendly whilst the uke is pretty much ignored but when they're alone the seme does a complete 180 in personality and is actually kinda rude-ish. There's a scene where he gets possessive with the uke too I think. Please help that's all I remember!! (╥_╥)

Hey guys can anyone let me know if this is a manga or art? Thanks http://i1.mangapicgallery.com/r/newpiclink/aishuu/2/2202457a26d3f2b01ac23401b69b237f.jpeg