Metronome

METRONOME

Anyone read the Metronome series?

Synopsis: A bloodstained man stands in front of a terrified girl. He proclaims his love for her and makes this ominous declaration: A year from now, she will either die alone or will be with him forever. Now, rumors abound about the cursed girl that causes any boy who proclaims his love for her to die. Join us to discover the mysteries of Metronome.

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Disturbing.
Has the SchoolDays aura all around it.
Will go buy it if its at the stores.

It's actually a web toon! So you would have to read it online o: