Anzai was born in Hyogo Prefecture on May 31, 1995. He joined J2 League club Tokyo Verdy in 2014. He played many matches as right side back from first season. In 2018, he moved to J1 League club Kashima Antlers. In 2018, Kashima won the champions in AFC Champions League first Asian title in the club history. In September 2019, he moved to Portuguese Primeira Liga club Portimonense.