The 23-year-old becomes Antoine Kombouare first signing in the January transfer window and will stay at the Stade du Roudourou until June 2021.
Ngbakoto left France to join the Loftus Road Stadium outfit in August 2016 after an impressive record of 12 goals and 11 assists for Metz in 2015-16 season.
With just five league appearances for Ian Holloway’s charges this season, the winger has opted for a return to France to pursue his career after making 35 appearances in total for the London club.
🖊OFFICIEL : l’international congolais, @Yeni_Ngbakoto23 a paraphé un contrat de trois ans et demi en faveur de l’En Avant. L’attaquant de 25 ans formé par le FC Metz et passé par les Queens Park Rangers portera le numéro 12 à l’EAG.— En Avant de Guingamp (@EAGuingamp) January 3, 2018
➡️ https://t.co/t8RgcjXwXd pic.twitter.com/waCj5iIEGI
They visit Strasbourg when the league resumes from its winter break on January 12.