Onigiri Bongo at Sumi
Founded in Tokyo’s Otsuka district in 1960, Onigiri Bongo is renowned for its enduring popularity. For one day only, proprietor Yumiko Ukon visits the hotel for a special collaboration featuring Bongo’s signature onigiri and exclusive fillings created by Sumi’s chefs, creating a joyful culinary experience shaped by Janu Tokyo’s spirit of connection.
Available exclusively on 23 August 2026, with two seatings at 1pm and 2.30pm.
This event is now fully booked. Thank you for your kind interest. To join the waitlist, please contact us at: +81 (0)50 1809 5550