Yakusoku Siren cover
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Yakusoku Siren

約束サイレン

A heartrending and heartwarming story about two twins: one who hates everything like himself and one who wishes to keep his promise from long ago.

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Sumomo Yumeka
Sumomo Yumeka

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FAQ

What is Yakusoku Siren about?
A heartrending and heartwarming story about two twins: one who hates everything like himself and one who wishes to keep his promise from long ago.
Is Yakusoku Siren still ongoing?
Yakusoku Siren is currently finished. It has 6 chapters.