The children of the partner of their parents' remarriage were ex-lovers?!

Moves in with her ex-boyfriend Mizuto Irido when their parents remarry.

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A relatively introverted high-school boy with high intelligence

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She was able to enter the same high school despite poor grades.

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She a short yet athletic high-school girl

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A frivolous and popular guy, called himself "Read Only Member"

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She remarries Mineaki and becomes Mizuto's stepmother.

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Mizuto's father. He remarries Yuni and becomes Yume's stepfather.

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The children of the partner of their parents' remarriage were ex-lovers?!

Moves in with her ex-boyfriend Mizuto Irido when their parents remarry.

Yume Irido

A relatively introverted high-school boy with high intelligence

Mizuto Irido

She was able to enter the same high school despite poor grades.

Isana Higashira

Isana Higashira

She a short yet athletic high-school girl

Akatsuki Minami

A frivolous and popular guy, called himself "Read Only Member"

Kogure Kawanami

She remarries Mineaki and becomes Mizuto's stepmother.

Yuni Irido

Mizuto's father. He remarries Yuni and becomes Yume's stepfather.

Mineaki Irido