Ramen Kasumi Awaza Honten (らーめん香澄 阿波座本店)

This is the Awaza flagship (honten) location of Ramen Kasumi, distinct from the chain’s Nakazakicho branch. It has been named a Tabelog Hyakumeiten (top 100 ramen shop) for multiple consecutive years and also won a category award at the Ramen Championship. The source note listed no closed day, and the shop’s official information confirms it is open year-round with no regular closed day, staying open continuously on Sundays.