If you like nostalgic tulip-shaped fried chicken, you definitely need to visit this shop (You can eat that style of fried chicken at Hotei-chan, too, though).
Toritsubaki is a chain restaurant, but fortunately, this Asakusa Kaminarimon branch is completely non-smoking inside. However, since people do smoke on the street outside, it is best to sit as far back in the shop as possible.