Ingasei no Baiser 

I dreamed of an intensely lewd, painfully heartrending love. But when I opened my eyes, I couldn't remember anything. That was the morning it all began. That's when a glasses-wearing transfer student joined Kajiwara's class. It was Minamoto Tamaki, with his excessive seriousness and his cutely pure way of speaking. Kajiwara is immediately attracted and falls in love with him in the blink of an eye.