So wait, it wasn't actually a date with her big sister? Or is this a separate "date"?
I was expecting an onee-san here, not The Return of the Tomboy (if only that was an actual movie ;_; ).
If I had a nickel for everytime the cute(usually gyaru) girl had a tanned, tomboy, Yuri best friend I'd have at least 4 nickels. Which isn't much, but I'm glad it's happened at least that many times 😂