Jun's age and grade can be found in the Digimon memorial book along ti tidbit about miyako's sisters.

I'll add the refs, then. Can you provide an image of the front of the book so I get the title correct? Also, any chance you could get a screenshot about the ages thing?Now activating Project: SPIDERS EVERYWHERE 14:23, June 6, 2013 (UTC)
Thanks, Kryten. The front of the book and title are on CDJapan.
and Onkei's translations can be found here:
"– Motomiya Jun Daisuke’s older sister, who is to become an 11th grader. Apart by 6 years in age, she often fights with her brother and apparently spreads bad rumors about him wherever she goes. She can act somewhat like a fangirl, and her hobby is chasing after Yamato’s band."
The Inoue girl's are also in that translation.


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