Ameagari no Bokura ni Tsuite

Just like the rain unnoticeably stopping, we fall in love slowly―― Given up on love, Kanade is a businessman living an unfulfilled life while hiding the fact that he was gay. On one of these days, Mashiro, a classmate Kanade secretly loved during high school, shows up. A reunion after 6 years, and their world begins to change. This is a clumsy, gentle love story between a pessimistic, pure boy and a determined, oblivious man, trying to find a sunspot. (Source: From Huffly Parfait Scans)