The Arsenal faithful were treated to their first home sightings of the 18-year-old for the visit of the League Two side, making their feelings clear before the youngster had even entered the pitch.
Miyaichi told Arsenal Player: "It was a mixture of nervousness and being excited [before coming on]," he added. "I could hear the crowd before and then I got a bit more nervous.
"I could hear the calls and I was really happy. I wanted to respond by playing well and hopefully that can lead to the next step."