Blue Moon, Blue: Between the Sheets

Ichise has become sweeter than the words of love he whispers now that he and Takafumi are lovers. While Ichise is in high spirits, Takafumi is the exact opposite, feeling weary due to a difference in values. That's when Koudai, who is head over heels in love with Takafumi, shows up?!

(Source: Shinshokan, translated)