Omae Imouto ja Nakute Iinazuke datta no kayo!?

Sinopsis

Takashi Shiina longed for the days when his little sister Kana adored him.
To his consternation, these days he's more likely to be ignored instead.
Then one day, their parents dropped a bombshell revelation.
Not only was he not their biological son… but they are also asking him to get engaged to his little sister Kana!?

A new kind of imouto manga for the Reiwa era!

(Source: ComicWalker, translated)

Sinopsis original de AniList.

Si te gusta Omae Imouto ja Nakute Iinazuke datta no kayo!?, prueba también

Imouto wa Kanojo ni Dekinai no ni Jitsu wa Imouto Deshita.: Saikin Giri no Otouto no Kyourikan ga Yatara Chikai Wake Ore no Koto ga Daikirai na Imouto ga Kowai Uchi Kyaba: Oide Kyabakura Shite Nii-chan wo Onnanoko ni Nare Sase you Daisakusen Tenkousaki no Seiso Karen na Bishoujo ga, Mukashi Danshi to Omotte Issho ni Asonda Osananajimi datta Ken