If you like more secret place, try Rogetsuan or Nioka, next best but ones of top in Japan.
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You don’t need to pay 10,000 yen for real Japanese Kaiseki. Hannya-Kuta in Higashi Ginza serve you at half.
However l rather go to Muho in Shirogane-Takanawa for Soba restaurant
The best kushiyaki @ Shinagawa st. is Marumiya in Shuwa bldg. 2 min from Takanawa exit by only ¥3,000
2nd. Best Yakitori (Grilled chicken) at Shinagawa station is Tori-Tetsu in Konan area.