Japan set a lofty goal of capturing the gold medal in the men's 4x100-meter relay at the 2020 Tokyo Olympics.

As has been repeatedly said, raising individual skills is the biggest key to achieving that feat. And working diligently in Japan and overseas is a big part of that.

After spending three weeks in Europe for training camps and races, Japan's national team relay members returned to their homeland on Tuesday. The group included national 100-meter record holder Yoshihide Kiryu, Aska Cambridge, Shota Iizuka, Ryota Yamagata and newcomer Yuki Koike, among others. The team was based in Madrid.