Shogakukan’s Manga ONE service will publish the final chapter of the Isekai Ryuuji: Shikou to Kyomu no Buzz Recipe Tabi (異世界リュウジ 至高と虚無のバズレシピ旅 ) manga by Hamaguchi Rintarou and Miyazawa Hishiwo on August 17th, 2025.

[https://x.com/MangaONE_jp/status/1951659252788986257]

Hamaguchi and Miyazawa started the Isekai manga in August 2024 in Shogakukan’s Manga ONE service, with supervision from Ryuuji. Shogakukan published the manga’s first tankoubon volume in February 2025.

Isekai Ryuuji- Shikou to Kyomu no Buzz Recipe Tabi Manga Cover 1

The manga story is described below:

“The main character is that culinary researcher!? In a certain world where daily food is rationed and freedom of eating is greatly restricted. Tina, who works as a servant in the lord’s mansion, is always hungry.

One day, a man named Ryuji, who calls himself a culinary researcher, appears at the mansion. Ryuji is imprisoned in a cell for speaking in a way that is inconsistent with the lord, but when he learns that Tina, who is on guard duty, is hungry, he offers to cook for her.

Ryuji, a culinary researcher with over 10 million followers, is transported to another world!? This is the beginning of a buzz recipe adventure that is fun to read and delicious to make!”