Joining
Irumagawa stable in March 2004, he was below the official height requirement at just 166 cm but was accepted after passing a secondary examination. Initially fighting under his own surname of Isobe, he recovered from an elbow injury sustained in 2006 to reach the second highest
jūryō division in November 2007. He was the second wrestler to pass the secondary height exam and reach
juryo, following
Toyonoshima. After changing his
shikona to Sagatsukasa he initially remained near the bottom of
jūryō and was demoted to
makushita on several occasions. However he fought his way back and reached the top division in March 2010 after a 9–6 score at
jūryō 1. He lasted only one tournament in
makuuchi and a series of poor performances back in
jūryō saw him demoted to
makushita once again. Returning to
jūryō in May 2011 he won the
yūshō or championship with a 13–2 record and was promoted back to the top division. He lasted four tournaments at the top before being relegated to
jūryō for the March 2012 tournament. After six tournaments in the second division, the last two of which he achieved consecutive 9–6 records, he was promoted back to the top division for the March 2013 tournament. However, he was injured and missed the last seven days of the tournament and was again relegated. He only lasted one tournament in
jūryō and dropped out of the salaried divisions in July 2013 where he remained until retiring, apart from one brief appearance in
jūryō in March 2014. ==Retirement from sumo==