From the intersection of Hongo Sanchome to Hongo Street towards the direction of the University of Tokyo's Akamon, at the location where Marseille Shoe Store's second floor, Hongxi Ge was located, in February 2023, 13287699, Masamune River Vegetable Kawagai River] opened. Nearby, along Kasuga Street, the Kawagai River that was there has moved here. In the original location, a Chinese tavern called Sanrokukyu has opened. As for the Hongxi Ge that was here, it seems to have opened in Iidabashi, 13287707, Higashi Kanda]. Now, about Masamune River Vegetable Kawagai River. All-you-can-eat and drink for 3,300 yen, and a light drinking set for 550 yen. At the entrance on the second floor, it says "One dish, one style, a hundred dishes, a hundred flavors." This expresses the characteristics of Sichuan cuisine, where each dish has its own style and each of a hundred dishes has a hundred flavors. In the visible area of the restaurant, there are about 8 four-person tables, 1 six-person table, and 1 two-person table. About 10 University of Tokyo students who came in later were guided to a separate floor, so there seem to be other rooms as well. The hall was managed by older brother and older sister staff who seemed to be from the original place. They were very efficient and provided pleasant customer service. Orders are placed through a tablet terminal on the table. The "Sichuan Specialty" page features dishes such as "Marinated Crayfish with Mala Sauce," "Sichuan-style Stir-fried Beef Frogs," and "Rabbit Meat with Green Peppers and Pickled Green Peppers." The light drinking set is 550 yen. It includes one drink and one dish. For the light drinking set (550 yen), I had a draft beer and Lurou. Lurou consists of four large slices of pork belly with a lot of fat. It is similar to the slices on Lu Rou Fan. For the second light drinking set (550 yen), I had a highball and century egg. The century egg was extremely spicy and delicious. For the third light drinking set (550 yen), I had Shaoxing wine and spicy wood ear mushrooms. The spicy wood ear mushrooms were seasoned authentically. Even if you remove the spicy part that clings to the wood ear mushrooms and eat only the mushrooms, they become extremely spicy. Despite being just a little bit, the spiciness was quite intense! I ended up having another bottle of beer (500 yen). The merciless authentic seasoning is great! I was dining alone, so I could only choose snacks, but I also wanted to try the spicy frog and crayfish.