Music Information | Happy Material(OP 1) | Yuri Shiratori, Madoka Kimura, Ayana Sasagawa, Natsuko Kuwatani, Kotomi Yamakawa, Azumi Yamamoto (eps 1-4)
| Happy Material(OP 2) | Shizuka Itou, Akemi Kanda, Ai Bandou, Akeno Watanabe, and Mami Deguchi (eps 5-8)
| Happy Material(OP 3) | Hazuki Tanaka, Ai Nonaka, Sawa Ishige, Yu Kobayashi, and Yui Horie (eps 9-13)
| Happy Material(OP 4) | Akane Omae, Miho Sakuma, Chiaki Osawa, Ryoko Shiraishi, and Misa Kobayashi (eps 14-17)
| Happy Material(OP 5) | Kimiko Koyama, Mari Kanou, Mai Kadowaki, Yumi Shimura, and Yuki Matsuoka (eps 18-21)
| Happy Material(OP 6) | Mamiko Noto, Mai Aizawa, Junko Minagawa, Naomi Inoue, and Yuka Inokuchi (eps 22-23,25)
| Happy Material(OP 7) | The Class of 2-A (ep 26)
| Kagayaku Kimi e(ED) | Akemi Kanda, Ai Nonaka, Mamiko Noto, and Yu Kobayashi (eps 1-13)
| Shisho to Nayameru Otomegumi(ED 1) | Ayana Sasagawa, Natsuko Kuwatani, Akeno Watanabe, Hazuki Tanaka, and Yuki Matsuoka (eps 14-22,24-25)
| Happy Material – Acoustic ver.(ED 2) | [Instrumental] (ep 23)
| Kagayaku Kimi e ~ Peace(ED 3) | The Class of 2-A (ep 26) |
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