The Tsugaru Shamisen Koshien "Matsugoro Cup" begins! Before Setsu and the others can take the stage in the group competition, powerhouse teams from all over the country stand in their way! Finally, the competition begins! What kind of performances will these strong opponents from all over Japan like the Fukuoka Team, the Osaka team... and the Aomori team led by Mai Tanuma put on? While anxiety still clings to Setsu's team, showtime draws closer with every moment...!