運命の赤い糸

Phrase consisting of 運(うん)命(めい) (unmei, “fate”) + の (no, possessive particle) + 赤(あか)い (akai, “red”) + 糸(いと) (ito, “thread, string”).

From a Chinese legend. See Red string of fate on Wikipedia.Wikipedia

• (Tokyo) うんめーの・あかい・いと [úꜜǹmèè nò àkáí íꜜtò] (Atamadaka + Heiban + Atamadaka – [1]-[0]-[1])

• IPA^(key): [ɯ̟̃mːe̞ː no̞ a̠ka̠i ito̞]

運(うん)命(めい)の赤(あか)い糸(いと) • (unmei no akai ito) 

1. The red thread of fate, believed to bind soulmates.

• 結(むす)びの神(かみ) (Musubi no Kami): matchmaking, love and marriage.

• 運命の赤い糸 on the Japanese Wikipedia.Wikipedia ^ja
• Red string of fate on Wikipedia.Wikipedia