Sleuths and Sweets - irisCTF

The description says there’s a lot of foot traffic so let’s search for a place with the most foot traffic in Japan The place happens to be the shibuya crossing so let’s assume they are in shibuya since it has the highest foot traffic The price tag seems unique let’s use google lens to see if there’s any dessert shop with a similar tag These crepes both have the similar cone holder/wrappers. The wrapper on the right reads marion crepes so lets search google maps Turns out there are two Marion crepes located in Shibuya We need to find which store is closer to the crossing “directly outside shibuya station’s Hachiko exit.” you say? Because the shop located in Jinnan is close by to hachiko The address is 1 Chome-21-3 Jinnan, Shibuya, Tokyo 150-0041, Japan now just tweak to fit the flag’s format
Flag: irisctf{1_Chome_21_3_Jinnan_Shibuya}