The Japanese starlet has improved his communication and footballing skills in preparation for his eventual league debut for the Gunners
A regular fixture in reserve matches, there are high expectations for the starlet who scored three times in 12 appearances with Feyenoord last season.
"I can tell I am improving a lot through training sessions with my team-mates," he told Arsenal's official website.
"I am also getting used to expressing myself to them without hesitation."
Some Japanese players in Europe have struggled with adapting to the local language, but Miyaichi has worked on improving his communication both on and off the pitch.
“I was too shy and nervous when I first joined the team. Now I feel more settled living in this environment. Arsenal found an English teacher for me. I suppose I am improving [because] I can understand what the coaches are saying."
Miyaichi will be out for three weeks after sustaining an injury in a reserve match earlier this week, but is optimistic about his future with the London squad.
“I am not in a rush,” the youngster commented. [Arsenal manager Arsene Wenger] advises me to concentrate on training."
The 18-year-old has yet to take the field for the Gunners in league play, putting in just 40 minutes in two League Cup appearances so far this year, but has found inspiration in practice, particularly in a team-mate.
"I also pay attention to Robin van Persie when he plays. He can release defenders with just one touch - he is so good at it.”