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How to Handle My Sassy Big Sis

Namaiki na Gal Ane wo Wakaraseru Hanashi
生意気なギャル姉を解らせる話
El día que decidí hacer entender a mi descarada hermana gal a mi manera
История о том, как я решил проучить свою нахальную сестру
用自己的方法降服叛逆姐姐的日子

Alternative

manga
This is the story of a brother who's very concerned for his little sister who's turned into a Gyaru and rebels against him, because of that he's chosen to make her "understand" in his own way.