What was the first specialized ramen shop, opened in Tokyo in 1910?

The first specialized ramen shop, opened in Tokyo in 1910, was Rairaiken.

Rairaiken opened in Asakusa, Tokyo, in 1910 and is widely identified by ramen historian Hiroshi Osaki as Japan’s first specialized ramen shop. Its founder, Kan'ichi Ozaki, had grown up around Chinese cuisine in Yokohama and understood the popularity of Chinese noodle dishes.

Ozaki employed twelve Cantonese cooks from Yokohama’s Chinatown. The shop adapted Chinese-style wheat noodles and soup for Japanese customers, serving early ramen with toppings such as chashu. Ozaki also changed the dish’s name from Nankin soba to Shina soba, terminology that shaped ramen’s early identity in Japan.

Rairaiken served other Cantonese foods, including wontons and shumai, and is sometimes linked to the development of Japanese-Chinese fusion dishes. Its story illustrates that ramen was not initially a purely Japanese invention: it developed through Chinese culinary influence and later evolved into many regional Japanese styles.

The other options are names of later ramen shops or unrelated establishments, not the pioneering 1910 Tokyo restaurant.