Riku was spotted at Incheon International Airport Terminal 2 4 days ago.Riku was spotted at Incheon International Airport Terminal 2 7 days ago.Riku was spotted at Gimpo International Airport 14 days ago.Riku was spotted at Incheon International Airport Terminal 2 20 days ago.Riku was spotted at Gimpo International Airport 22 days ago.Riku was spotted at Gimpo International Airport 28 days ago.Riku was spotted at KINTEX 2nd exhibition center 32 days ago.Riku was spotted at Taipei Dome 40 days ago.Riku is scheduled at Makuhari Messe on Sat, September 26.