Ep. 1: The first problem: Is Nana times Nana equal to NANA?
Aired on January 10, 2002

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Episodes
- Ep. 1 · The first problem: Is Nana times Nana equal to NANA?
- Ep. 2 · Chaos! All seven of us go to school?
- Ep. 3 · Do seven Nanas make one Nana?
- Ep. 4 · The formation of the exam hell squadron known as the Nana rangers
- Ep. 5 · Yuichi must decide on his first-choice high school