Artist, illustrator of adult game brand PALETTE.
Don't confuse him with the brand/mascot character of Benesse Corporation. (See also post #598637)
Japanese name: γγΎγ²γ (Tamahiyo)
Old name: γγγγ¨γγγ (Okamoto Isamu)
Circle name: BLUE WAVE
Site name: BLUE WAVE Private Gardeο½