Sanmaruku Kafe is a cafe in Ueno, Tokyo, serving brunch, drinks, and parfaits. It sits inside the ticket gates of Ueno Station on the Ginza Line. The Ueno branch's signature items are a panda parfait, a chocolate croissant, and an egg sandwich. Seating is spacious and there are power outlets and Wi-Fi, but the air conditioning is weak and the shop gets hot in summer.