Improved by live action adaption Anonymous 03/18/2017 (Sat) 08:21:06 No. 18514 del
They got rid of the anime hair color, and then made Rika taller than Rena so the sacred balance of realism could be preserved.

https://www.facebook.com/DaisuOne/videos/10154033959925469/

We are obviously looking at a 10 year old and a 15 year old in a parallel world.