TO GO WITH AFP STORY "JAPAN-ECONOMY-SHOPPING-MERGER" BY KARYN NISHIMURA-POUPEE This picture taken on October 17, 2015 shows pedestrians walking past a store of Japan's second largest convenience chain, Lawson, in Yokohama, suburban Tokyo. Stocking anything from shirts to face masks, 24-7 convenience stores have become an indispensable part of Japanese daily life, with the sector now worth more than Sri Lanka's economy. Their secret? Constant renewal. AFP PHOTO / Yoshikazu TSUNO