The Steam Ninja Scrolls: Potato Chips and the Giant Boulder!

Mirai, Kakashi, and Guy travel with Tatsumi to a village with a secret hot spring, but they find the hot spring covered by a boulder! Luckily, Choji drops in, armed with the Akimichi Clan’s Secret Super Expansion Jutsu, but he’s too hungry and can’t utilize the full extent of his abilities!Source: crunchyroll