【Ultimate Pork Back Fat】 Aogiri High School's Otodama Tamako × "Kotte-ri Ramen Naritake" Unique Collaboration Starts April 16!

viviON Co., Ltd. (Location: Chiyoda-ku, Tokyo; Representative Director: Kosaku Akashi) will hold the first collaboration fair between Otodama Tamako (Otodama Tamako), a member of the VTuber group "Aogiri High School" operated by the company, and "Kotte-ri Ramen Naritake" (Operated by: Naritake Co., Ltd.), a renowned restaurant famous for its pork back fat ramen, starting Thursday, April 16, 2026, at six locations nationwide.

In addition to a limited-edition menu packed with the "favorites" of Otodama Tamako, who is recognized by herself and others as a ramen lover, the event will also feature store-exclusive T-shirts and original merchandise, making it a must-see for fans.

Project Background: A "Serious" Collaboration Born from a Love for Ramen

Driven by the passion of Otodama Tamako, a self-proclaimed and widely recognized ramen enthusiast, a collaboration with "Kotte-ri Ramen Naritake," which boasts enthusiastic support primarily in Chiba and Tokyo, has been realized. This is more than just a collaboration; it's a "serious bowl" delivered with absolutely no compromise on taste or volume.

Collaboration Limited Ramen: Tama-chan's Favorite-Packed Pork Back Fat Rich Soy Sauce Ramen

This is a dream "all-topping" specification, loaded with Otodama Tamako's favorite foods. Based on Naritake's proud pork back fat soy sauce ramen, it's topped with green onions, bean sprouts, as well as a boiled egg, wakame seaweed, pork belly chashu, and menma. It's a luxurious bowl rich in pork back fat, where Tamako's favorite ingredients co-star in one bowl.

Price: 1,600 yen (tax included)

Novelty: For each collaboration ramen purchased, a "postcard (5 types in total)" will be randomly given as a limited-quantity gift! The back features a special message from Tamako.

*Limited quantity, ends when supplies run out

Aim for 3,000 Bowls! Special Project to Make the Collaboration Menu Permanent

During the period, if the total number of collaboration ramen served across all stores reaches 3,000 bowls, the collaboration menu will be permanently sold for approximately six months!

Participating Stores: Tsudanuma Store, Motoyawata Store, Kinshicho Store, Makuhari Store, Ikebukuro Store, Fukuoka Nishijin Store

*If permanent sales are achieved, novelty gifts will not be distributed after the collaboration period ends.