Daini was born in Kobe on October 12, 1944. After graduating from Keio University, he joined Mitsubishi Motors in 1970. The club won the Japan Soccer League champions in 1973 and 1978. The club also won 1971, 1973, 1978 Emperor's Cup and 1978 JSL Cup. He retired in 1978. He played 119 games and scored 1 goal in the league. He was selected Best Eleven in 1973.