I believe it's called bara.
Thryxie, welcome to the Yaoi world!!! and yes, this manga is really good, I don't really used to read bara (the commentary above is correct) but, this author give at their mangas an unexpected final, and all of them are really hilarious. I recommended the other one of the same author. Enjoy the other mangas and if you want to know something, let me know.
Thanks Chibi!! I appreciate it!! Thanks Momoko!!
You're welcome :)
I have to say this is my very first yaoi manga where there is a muscular uke.. Really!! There's probably a genre for that I just don't know what you call it and I really enjoyed it! I have only just read yaoi manga where most of the uke were girly-looking! The story was good.. Straight forward not so much drama... The art was great. Highly recommend it!