The Japanese youth international has had a whirlwind start to his life in north London. From high school football to Arsenal's first team in just a year, the youngster had to learn fast.
"If I was to say 'everything' has changed I think that would be right," he told the Official Arsenal Matchday Programme. "I have been learning technique, tactics and physicality, and there have been a lot of new things over the past few months.
"I believe in Arsenal and know that I will get better as my time here continues."