i. Biography
Owner-chef Kaoru Aihara of Simplicité in Tokyo, Japan, works from Kanagawa Prefecture with a kitchen logic built on sea, season, hand, and guest. At Simplicité, that logic shows up in fish aged for several weeks, premium Akashi fish, Japanese sensibility, and refined French technique. The food is controlled, exacting, and measured, with the kind of timing that comes from waiting long enough to know when to move.
The Training The training line here is written in technique: Japan’s finest seafood handled through refined French methods to produce depth, elegance, and precision. Kaoru Aihara does not frame that meeting of traditions as display. It is closer to a working exchange between ingredient and method, beginning with close reading of the fish and continuing through time, control, and restraint. Technique is used to clarify flavor, not cover it, so the contours of the fish stay visible and the finish carries length. The name of Simplicité also points to a rule for the room. Kaoru Aihara has said he chose the word to mean simplicity or minimal, and to keep that idea in mind in how he meets the people, ingredients, and food at the restaurant. In practice, that means holding back what is unnecessary and staying disciplined in the way each plate and each interaction is handled.
The Lineage The lineage is carried through fish work rather than through a single named mentor: Japanese handling, contemporary French aging, and the demands of cooking for the guest in front of you. At Simplicité, Kaoru Aihara applies contemporary French aging techniques to premium Akashi fish, making time part of the craft rather than a pause between steps. The kitchen’s pace depends on that slow development, and on knowing when the fish has reached the point where it should be sent out. Because that work happens in front of the guests at the counter, speed and concentration matter. Kaoru Aihara has said it is necessary to work briskly and with concentration. The counter becomes a place where preparation, aging, cutting, seasoning, and attention all have to land cleanly, without losing the composure that the restaurant demands.
The Table Simplicité in Tokyo is known for rare and exceptional cured fish cuisine. Its signature is a method rather than a single dish: aging fish for weeks, applying Japanese techniques and sensibilities, and using refined French methods to bring out depth, elegance, and precision. The result is food that reads as composed but close, with flavor built patiently and released at the right moment. At Simplicité, Kaoru Aihara says, cooking is always for that day. That standard defines the table in Tokyo. Fish is not treated as fresh alone; it is watched, aged, cured, and moved forward once technique has drawn out its character. What reaches the guest is restraint held long enough to become expressive.
In Their Words “I named the restaurant with the understanding that “simplicité” means simplicity or minimal, and I will hold that ideal in my heart as I interact with the people, ingredients, and food at the restaurant.” “At Simplicité, we are always required to cook for that day. Otherwise, I think it means we are not facing the people who came to eat that day 100%.”
Profile updated August 2026
FAQ
Asked of Kaoru
What is Kaoru Aihara's current role?
As of 2026, Kaoru Aihara is Owner-chef.
What is Kaoru Aihara known for?
Rare and exceptional cured fish cuisine in Tokyo.







