Do S na Oniichan to no Atarashii Koi no Hajimekata Oshiete KudasaiDo S na Oniichan to no Atarashii Koi no Hajimekata Oshiete Kudasai!; 1 新しい家族と一つ屋根の下; Sadist in the House; ドSなお義兄ちゃんとの新しい恋のはじめ方教えてくださいっ！; 家の中のSな事; Ie no Naka no S na Koto
Shiori's dad remarries and she couldn't be happier. Not only has she gained a new mom, but a hot, older, yet sadistic brother as well?!
Note: The manga was previously named as Ie no Naka no S na Koto.
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