*"Kangan" Series #1 : [Koutei to Kangan](https://www.mangaupdates.com/series.html?id=122158)* Features Emperor Tai Lan and Hai Yan. *"Kangan" Series #2 : **Teikoku no Kangan*** Set before *Koutei no Kangan* and * Itsuwari no Kangan*. Features Emperor Tai Lan's second oldest brother, former emperor You Gen, and Jian "Bi Jian". *"Kangan" Series #3 : [Itsuwari no Kangan](https://www.mangaupdates.com/series.html?id=144786)* Set before *Koutei no Kangan*. Features Rei Rin's older uncle, the head eunuch, Yang Ning, and Hai Yan's "older brother", Ma Shi Liang.

Fujihira is cute. He always does his best to help out and his answer sheets are carefully filled out. However, I am a Professor and Fujihira is a student and we are both men. I had no intention of even dreaming anything could happen, but when I accidentally caught the bouquet at a wedding, things changed. This is a story of how a student and a Professor are brought together by a bouquet. A slow-paced, yet sparkly love story that takes place inside the school's preparation room.

Overcoming his pedigree and status, is it a sin to fall in love____?