

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. (Source: Psycho Pandas)
Yakusoku Siren has 6 chapters.
Yakusoku Siren is currently finished.
Yakusoku Siren was written by Sumomo Yumeka.
Yakusoku Siren was published Jan 24, 2009 to May 24, 2010.
Ranked higher than 94% of all manga on AniTome (out of 30,039)
More popular than 71% of all manga
Sumomo Yumeka also made