Haeshin Chamchi is a tuna restaurant in Dobong-gu, Seoul, at the end of the second alley on the right from Changdong Station Exit 1, across from the Nowon Tax Office. It serves several cuts of tuna in course style, with refills brought quickly. The counter seats more than ten people, and the restroom is unisex and inside the store. The menu composition and side dishes are sparse.