After graduating from University of Tsukuba, he played for his local club Sony Sendai.
After retiring players career, Otsuki became J.League club coach.
On April 2, 2018, team manager Takafumi Hori was sacked.
[4] Following a poor start to the 2024 season with 10 losses in their first 14 games, Otsuki was dismissed in May 2024.
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