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disc_cover goshuushou-sama_ninomiya-kun ninomiya_ryouko no_bra nopan seifuku torn_clothes

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I can't figure out who this is....
Let's say Ryouko went to high school in the early 90's, so compare this outfit with those from 2000 onwards "anime wise".

In other words this is a younger version of Ryouko.
Sorry for double post (*hopes* for an edit button in future)

There's 6 girls and 6 DVD vols, it's just that Ryouko didn't appear in an uniform as far as I can remember.. Well I guess the studio added this little bonus for the fans. She's also stated to be 24 which makes this about ~7 years ago?