I believe this is the store located in the plaza basement beneath Teikoku Gekijou in Yurakucho. Takki took a class there to learn how to decorate a chocolate roll cake. Then months later, he returned to learn how to make fresh pasta with basil sauce. His instructor was Ohno Meiko-san.
{ Side Note }
On their English website, it says that they have bilingual instructors who teach classes in Japanese and English. But we’re not sure if those instructors work only at the international studio branch or if they also work at the Marunouchi branch…
{ Website } ABC Cooking Studio +m Marunouchi Studio