What truly sets Tomurakawauoten apart is its remarkable location. When choosing the site for their current shop, the owner faced fierce opposition from family and fellow fish merchants—the land was inconveniently located, far from main roads and commercial districts. However, the owner insisted on this specific plot for one crucial reason: the well water. Despite being over 20 kilometers from the ocean, the shop's well draws water from just 15 meters below ground that naturally contains traces of seawater. This unique water supply fills the shop's five live tanks and four signature "eel towers," creating an environment that eliminates the muddy aroma often associated with river fish.

At the main shop, visitors can enjoy a unique eel-grabbing experience that has become especially popular with guests seeking an interactive connection to their food. This hands-on activity adds another dimension to appreciating the care and tradition behind every eel served. For those seeking authentically exceptional Japanese eel prepared by masters of the craft, Tomurakawauoten represents over a century of dedication to perfection. It's a beloved local institution where tradition, expertise, and an unwavering commitment to quality converge to create truly unforgettable flavors.