Can someone tell me what title is this manga please?

[Ren_Dragneel]

It is in ancient time! Everyone in the palace had to keep their hairs long! The seme in this manga had long blonde hair and he was served as a slave for the kind cuz he has the most beautiful hair, while the uke had long black hair with glasses and was very stoic! The uke was to prepare bath for the seme! After they talked and made love (;3) the seme voluntarily cut his hair so the king wouldnt want him anymore but the uke told him to grow it back and yeah the story is that much! It was an awesome story and i have been trying to find it but i couldnt find anything ;-;