1-5. Kinyoku-bu: Joseito-tachi ni Choukyou Seikyouiku Jisshu (禁欲部 ～女生徒達に調教性教育実習～); Comic Grape Vol.4, 6, 8, 10, 12 
6-10. Ane Taiken Shuukan: Namaiki Imouto-tachi to One Shota Ecchi!? (姉体験週間 ～生意気妹達とおねショタえっち!?～); Comic Grape Vol.16, 18, 20, 22, kakioroshi 
11. Ane Taiken Shuukan SP (姉体験週間 SP); Seikatsu Shuukan Toranoana Tokuten Kakioroshi 8P Shousasshi

Ane Taiken Shuukan 
I'm an older brother who loves to masturbate to my younger sisters and get scolded by them all the time for it, then I got a mail with a link and thought it's an eroge from a brand I love. I got an error and blackout when opening the file, nothing can be done and I go to sleep, the next morning when I woke up I found my body shrunk and let out a shout. My younger sisters now older sisters come and found me, Aya older sister who got a shota complex hugs and pampers me. 
Full lewd moments with my new older sisters, a one week "older sister experience".

__Hobby:__ Painting

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Ayaka