Hello. Your hairdresser's name sounds very Japanese, indeed, so I looked it up in my Japanese dictionary. Results: 実 = mi meaning 'fruit; matter, essence' 実る = minoru = to bear fruits, to ripen. Ta-da!! Also it has other readings and meanings as jitsu=truth, reality; makoto=truth, honesty; sane=core, seed. Archaic form of this character is 實. Then I looked it up in Chinese dictionary and found a reading shi (rising tone), but no meaning. Then I looked up the archaic form and it seems to become 实 [shí] concrete, accurate, in actual fact, kernel. Thank you for the quest!