Ongo Jisin is a cafe in Sillim's Charosugil that serves blended teas, Korean desserts, and Dutch coffee. The matcha strawberry latte combines bitter matcha with sweet strawberry, and there are also the red Ongo 3 and the injeolmi-flavored Ongo Ice. Orders are placed on the first floor and seating is only on the second floor, where about seven teas can be chosen. The second-floor seats are few and the tables are low and narrow, making it uncomfortable to sit for long.