During the Funabashi High School, he served as captain and led the team play, introducing a special block signs.
[2] After graduating from Senshu University, he joined Yokohama Flügels in 1992.
After retirement, Adachi started coaching career at Yokohama Flügels from 1993.
In May 2018, he signed with Kataller Toyama and became a manager as Tetsuro Uki successor.
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