Hi there ppl... There was a yaoi manga I read before about a boy who can see a virtual red...

Hi there ppl... There was a yaoi manga I read before about a boy who can see a virtual red string tied to the person's finger ... The other end of the string is tied to the fated pair and his fated pair ends up to be a man *DUHH*
If anyone could help I'd be so thankful ╮(￣▽￣)╭