Re: Pertinence, if you are interested in French-by-a-Japanese-chef type place, my recommendations would be:
Alliance (but go for lunch)
Perception (go for dinner, and the chef is actually Korean, but the style is very similar, with some slight Korean touches)
Akabeko in the 6e, where I’ve only been for lunch; you can read some about it here.
Most on this board seem to agree on Alliance. Many but not all agree on Perception. Akabeko is much newer and gets fewer comments either way
