As the crew prepares to cross the "Sea Route of Silence"—a treacherous stretch of ocean with no wind or fish—Naruto buys a rare, glowing mushroom from a suspicious merchant to stock up on supplies. However, once they set sail, the mushroom begins to rapidly multiply, absorbing Yamato’s chakra and devouring every other scrap of food and water on the ship. The situation quickly devolves into chaos:
Driven by extreme hunger, Naruto and Might Guy eventually give in and eat the mushrooms. The fungi turn out to be highly toxic and hallucinogenic, causing the two to lose their senses and engage in a delirious skirmish. Naruto Shippuden Episode 229
After the effects wear off, Naruto summons Gamatatsu to obtain "insect cooking" from Shima to save the crew from starvation. As the crew prepares to cross the "Sea