Keiji is able to see the red string of fate. One day, he suddenly notices a red thread tied to his own finger! He follows believing it can be his crush but it turns out it's a boy. He doesnt believe that the red string is accurate and does online to find a way to break the string of gate and after he meets someone who can give special scissors to cut the string but is told iirc to be sure because once its cut it hard to put it back. And what happens next...
Akai Ito No Shikkou Yuuyo