The 19-year-old is pleased with his progress this term, and says he is willing to bide his time as he waits for more first-team opportunities.
"I think I've made big strides. Once you come to a big club, you can't walk into the team - I have to work hard every day so that I can play well in the future," Ryo told Arsenal Player.
"Even so during training, being able to practise alongside superstars can only be a good thing. It's important to try to get noticed.
"All I can do is believe in myself and work hard. Otherwise it's up to the boss so I'll just do what I can."