It's a restaurant/cafe also an eel musium that has souvenirs and is one of the largest collections of live fresh water eels in japan. Cozy and the atmosphere is warm and welcoming. It was very interesting to say the least.

Amazing Place, Everything is Themed around Eels especially the food. Nice relaxed atmosphere. There is an eel exhibition too, with eels from all around the world

Exit from the east exit of Asakayama Station and you'll see it right away. The curator-owner is charming, and the customers who gather here are each full of personality, making it a fun place. They keep many species of eels, and because of their rarity, it has been featured in the media several times. There are also several exhibits related to eels and fish collected by the curator personally, as well as works such as pottery (some are for sale). Although it's mainly a museum, the food quality is high. In particular, the eel salt bread is so carefully made that bone meal is kneaded into the dough. Inside there are two large tables. Unless you have a connection with someone who has been there several times, it might be a bit hard to just drop in alone.

Having heard that they'd be open from 11:00 until around 15:00 during Golden Week (May 3–5), I confirmed by phone and visited today. The staff member in charge of food was away today, so only the café menu was available, but I was able to tour the Eel Museum (aquarium area). The opening day in May is said to be May 20 (the third Saturday), from 17:00 to 21:00.

It is a coffee shop, but lots of freshwater fish are kept beside it. Itou, kawamutsu, oikawa, gogi... Inside there are also things like wood carvings of amago, and mountain-stream anglers used to come and go often.