Naruto: Konoha's Story—The Steam Ninja Scrolls: The Manga summary:
The Naruto spin-off novel is now a manga series! The retired Kakashi and Guy head to a hot springs in the Land of Hot Water with their bodyguard, Sarutobi Mirai! A story connecting two generations through the power of bonds!
Naruto: Konoha Shinden: Yukemuri Ninpocho has three protagonists — Guy, Kakashi, and Mirai (the daughter of Asuma and Kurenai) — and takes place at a hot spring. The novel "ties together Naruto and Boruto," and is set between the final chapter of the original Naruto manga and the Naruto: The Seventh Hokage and the Scarlet Spring spinoff manga.