Let's turn the world upside down with Udon! ~One-day limited event by age 18 to be held in Toranomon~
"by age 18" to hold a one-day limited event in Toranomon and announce global expansion plans.
📋 Article Processing Timeline
- 📰 Published: March 31, 2026 at 03:21
- 🔍 Collected: March 30, 2026 at 21:46
- 🤖 AI Analyzed: April 15, 2026 at 10:28 (372h 42m after Collected)

"by age 18," a plant-based, gluten-free udon restaurant in Kagawa Prefecture that has welcomed over 10,000 visitors and opened its second store in Malaysia last year, will hold a one-day limited event in Toranomon on April 17, 2026 (Friday).
On this special day, Chef Katsuzo Kusumoto of "Vegan Restaurant Sai-do," who supervises all the menus at our restaurant, will personally serve by age 18's udon and dishes.
Additionally, a talk session on the future of Japanese food will be held with three speakers: Morilow Murakami, Founder of by age 18; Chef Kusumoto; and Mr. Unno from Sustainable Food Asia. In the latter half, business concepts, including by age 18's global expansion plans, will be announced.
Let's question the common sense of food for a day in Toranomon.
① Event-Limited Course Meal Featuring Chef Kusumoto's Sanuki Udon
A special limited course menu will be created from the dishes actually served at by age 18. This is a unique opportunity to taste flavors that can only be experienced in Kagawa.


Course Details
・Soup to Start
・Gentle Caprese
・Cold Udon: "Summer of Tomato (Cold Udon with Tomato Soup)"
・Hot Udon: "Setouchi Smoked Soy Sauce Udon"
*All dishes are by age 18 menu items, wheat-free and plant-based.
*Drinks are cash-on-demand.
② Founder & Chef Collaboration...
FAQ
What is "by age 18"?
"by age 18" is a plant-based, gluten-free udon restaurant originating from Kagawa Prefecture, Japan.
When and where is the event?
The event will be held for one day only on April 17, 2026, in Toranomon, Tokyo.
Who is Chef Katsuzo Kusumoto?
Chef Katsuzo Kusumoto is the chef of "Vegan Restaurant Sai-do" and supervises all the menus for "by age 18."
What will be served at the event?
A special, limited-edition course meal featuring Sanuki udon prepared by Chef Kusumoto will be served. The menu includes dishes like "Summer of Tomato (Cold Udon with Tomato Soup)" and "Setouchi Smoked Soy Sauce Udon."
What is the purpose of the talk session?
The talk session will cover the future of Japanese food and will include the announcement of "by age 18's" business concepts, such as its global expansion plans.
Is the food gluten-free and plant-based?
Yes, all dishes served at the event are part of the "by age 18" menu, which is wheat-free (gluten-free) and plant-based.