Butter Soy Sauce Sauce Sauce 3P", when placed on warm rice, the butter aroma is released as the rice heats up & the butter smells great in the mouth.
Mitsukan will release "Kin no Tsubu Butter Soy Sauce Sauce 3P". Natto with "Butter Soy Sauce Sauce" that spreads its aroma and richness softly when served over hot rice.