Shouganai kedo Itooshii

Naoki, who manages an apartment on behalf of his grandfather, is told that his cousin Keigo will be moving in when he starts university. Naoki looks forward to being reunited with Keigo, who had always been fond of him, but he finds that Keigo has grown into a handsome man who is quiet and whose thoughts are hard to read. Although Naoki is confused at first, he begins to feel comfortable with the closer relationship they have as they live near each other... But one day, he finds out that Keigo has been stalking him?! Naoki just can't bring himself to push Keigo away, and he tries to "correct" his feelings for him somehow...

"If Naoki-nii hates me, how can I live from now on...?"

(Source: Home-sha, translated)