Seitokai Yakuindomo OVAEpisode 21

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2. 15
3. 16
4. 17
5. 18
6. 19
7. 20
8. 21

It is the start of Takatoshi Tsuda's second year as the put-upon vice president of the student council and his sister Kotomi is entering school as a first year. New friends and double entendres are made.