Rakka Ryuusui no Hoshi

Akihito Kuze is living alone in his house and takes men as visitors during the night. When an officer named Goutarou Sumeragi is assigned to be his guardian, all these men stopped coming and Akihito seemed unhappy...? Later on, Goutarou learned the reason behind Akihito's loneliness and thus their life of living together take a turn into something else.

(Source: MU)