Niko Bungert is a retired German footballer who played as a defender. He was also a member of the German U-21 team. He was part of the Schalke youth team that won the Youth DFB-Pokal in 2005. From Wikipedia
The loan carries a €200,000 fee alongside a €1 million purchase option, with Kawasaki deferring his Japan debut to focus on his World Cup path.
