[CHRV-086] My diligent and exemplary younger sister's obscene huge breasts are a sight to behold! G-cup 97cm Hikari. The only tng my excellent and flawless sister struggles with is sex education...
I wonder who my sister resembles, she's incredibly smart! And it's not just her intelligence! She's cute, and her boobs are huge! She's a big-boobed honor student! But despite her brain, body, and boobs being abnormally developed... Especially when it comes to her boobs, they themselves are inferior students, huh? I'll have to train them from the inside!
