What is Oshiete!! Kosu Neesan about?

Oshiete!! Kosu Neesan is a manga.

Is Oshiete!! Kosu Neesan still ongoing?

Oshiete!! Kosu Neesan is currently finished. It has 17 chapters.

FINISHEDMANGA

教えて!!コス姉さん

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Story & Art

What is Oshiete!! Kosu Neesan about?: Oshiete!! Kosu Neesan is a manga.
Is Oshiete!! Kosu Neesan still ongoing?: Oshiete!! Kosu Neesan is currently finished. It has 17 chapters.