Four male friends support each other through the colorful ups and downs of teenage love. These four friends couldn't be more different: Natsuki Hashiba, a dreamer who longs for love, Tomoya Matsunaga, a self-centered playboy, Keiichi Katakura, a winsome guy with a hidden saucy streak, and Tsuyoshi Naoe, a socially awkward nerd who loves anime, manga, and games. Together their high school days are as vibrant as rainbows! It's Keiichi's time to shine on Sports Day! But when he sees Nozomi enjoying volleyball practice, he can't understand why he feels strangely unsettled. Meanwhile, Mari has a big confession to make!.