Morioka was born in Hyogo Prefecture on April 12, 1991. After graduating from Kumiyama High School, he joined J1 League club Vissel Kobe in 2010. He played many matches from 2011. In January 2016, he moved to Polish Ekstraklasa club Śląsk Wrocław. In June 2017, he moved to Belgian First Division A club Waasland-Beveren. In January 2018, he moved to Anderlecht. In January 2019, he moved to Charleroi.