أيام قوس قزح (Arabic), 虹色デイズ (Japanese), 水野美波 (Chinese), 虹色DAYS, รักสุดใจคนวัยซ่า (Thai), Oh My God Days, Rainbow Days (English), Những Ngày Có Cầu Vồng (Vietnamese - Tiếng Việt - TV)
From Freewheeling Scanlations: Natsuki is teased for being a hopeless romantic, Keiichi disguises his sadistic personality with a constant angelic grin, Tsuyoshi is an otaku who can't read the atmosphere, and Tomoya is a frivolous playboy who likes his archenemy — these four boys are the best of friends who spend their high school life with easygoing spirit. However, certain inevitable but hilarious events might pop their happy bubble.