Nijiiro Days follows the colorful lives and romantic relationships of four high school boys—Natsuki Hashiba, a dreamer with delusions of love; Tomoya Matsunaga, a narcissistic playboy who has multiple girlfriends; Keiichi Katakura, a kinky sadist who always carries a whip; and Tsuyoshi Naoe, an otaku who has a cosplaying girlfriend.
| Tagline: | Rainbow Days centers on a group of four male high school students who are close friends: Natsuki, Tomoya, Keiichi, and Tsuyoshi |
| Cast: | Ai Yoshikawa, Mahiro Takasugi, Reo Sano, Ryusei Yokohama, Taishi Nakagawa |
| Director: | Ken Iizuka |
| Country: | Japan |
| Release: | |
| Language: | Japanese |
