From Mangaupdates :
The manga is a continuation story from a BL (Boys Love) game under the same title.
1-2) A Distance Between Words and Heart
Nishida Yuuto got his first male lover, Kobayakawa Ryuuji, an ex-host. However, he's unsure whether this relationship is strong, or if he's only being toyed with.
3-4) The Clumsy Darling
Aoi Satoru is now Kishimoto Takami's lover... Can he trust Takami, who has such a dirty past...?