The protagonist, Miyo Tsuinashire, transfers to a historically rich tourist city. Due to being consumed by something called the "Beast with Fangs" in his childhood, he lost half of his soul, which granted him the ability to attract the souls of those hiding in the shadows around him, manifested as a creature called "Kotoari". "Kotoari" is an entity formed from fragments of souls scattered from suffering beings. This ghostly existence can be seen, heard, or touched by no one else except those who shed the fragments. And as the name "Kotoari" suggests, it exists due to the resentments it harbors. Thus, unless the grievances in its heart are resolved, it will inevitably reappear, even if temporarily repelled. Shortly after transferring, Miyo finds himself caught up in an incident requiring him to seek out the master of the manifested "Kotoari" because he touched a strange statue. This search leads to deeper interactions with these "Kotoari". The result is that he has to uncover many hidden issues within the hearts of the female protagonists and face challenges together with them... "As for me... I can see the monsters born from the scars in your heart."
