Red string of fate
When I saw this pic I immediately thought "red string of fate" lol! obviously I watch a lot of anime :)
Not many ppl know this but it originated in chinese legend but in the japanese legend it is said that two ppl connected by the red thread(usually tied on their pinky fingers) are destined lovers, regardless of time, place or circumstances. The magic thread may stretch or tangle, but never break. :) Good food for thought yea?
Credit: I got the pics from baidu and the excerpt of the red thread from wikipedia.