Minori Deguchi began playing the violin at the age of 3. She entered the violin classes of Yoshio Unno and Hamao Fujiwara at the Toho Gakuen University of Music (Tokyo) in 2011. At the same time as her studies, she began to learn the baroque violin, which has interested her since childhood, with Ryo Terakado and Kaori Toda. After obtaining her bachelor's degree in modern violin, she continued to study baroque violin at the Tokyo University of the Arts in the class of Natsumi Wakamatsu, before entering the CNSMD de Lyon in 2017, where she obtained her master's degree in baroque violin in Odile Edouard's class, as well as a master's degree in chamber music.

Minori was awarded second prize at the 2019 « Yamanashi » International Early Music Competition, as well as first prize and the audience prize at the 2019 Premio Bonporti 2019. Elle a reçu également une mention honorable au Concours International Bruges 2021 (Belgique).

She performs with a number of baroque and classical orchestras and ensembles, including Classical Players Tokyo (conductor Masahiro Arita), Orchestre Libera Classica (Hidemi Suzuki), Gli Angeli Genève (Stephan MacLeod), Concerto Soave (Jean-Marc Aymes) and Les Surprises (Louis-Noël Bestion de Camboulas).