The Boy from the Isle of Shipbuilders

Synopsis
Denki is unable to fix the damaged ship parts. Kagura believes they'll have to use a lifeboat to request aid at the nearest island. Boruto suffers from heatstroke and falls into the ocean, where he is saved by a figure with webbed fingers. When he comes to, Iwabee tells him he merely passed out from heatstroke on the ship. Another ship approaches them, the boy on the ship reminding Boruto of the figure he saw. Boruto asks the boy if he's the one who dove after him. The boy is flustered, and the other man tells him the boy was with him the whole time. Boruto remains certain he fell in the ocean, despite everyone else saying otherwise. Kagura recognises the man as Kajiki, a prominent shipbuilder from an island north of Kirigakure. The boy boasts Kajiki is the best shipbuilder in the whole Land of Water, and is reprimanded by Kajiki. The boy introduces himself as Ikada, Kajiki's apprentice, and notes most of them are Konoha shinobi. Kagura explains their situation, and deciding he can't fix the ship there, Kajiki has Ikada prepare for their ship to tow the damaged one. They reach the shipbuilders' island, and Ikada offers to show them around. Boruto recalls that whoever saved him had webbed hands, but Ikada shows his aren't, so Boruto apologises. The Dotō Island refugees are allowed to stay, and Kagura requests a ship to get back to Kirigakure, but they all left to fight the Funato. Kajiki says he can repair their ship, but will require payment, and asks help from Team 5, Boruto also offers to help. Kagura, Sarada, and the swordsmen want to contact the Mizukage, Mitsuki and Kawaki will stay by the harbour. At a Funato controlled island, Araumi receives reports from his children, updating him on their military strength. Tenma arrives, and notifies them of the loss of their mobile fortress and those responsible. Isari recalls that Kagura was the warden of Araumi's prison, and fighting a Konoha shinobi during the breakout. Araumi and Isari both tell Tenma not to worry, as the fortress did its purpose, and was just a tool, all that matters is defeating their enemies at the end. Kajiki determines what needs to be fixed and updated in the stolen Funato ship, and Denki requests learning more about the engine if something happens again. Boruto returns Ikada's idea notebook when he drops it. The overhear the other craftsmen discussing the Funato, some of them understanding their reservations about the daimyō, and sharing rumours that the Shinonome 1 would case trouble for fishermen by messing with the currents. Ikada explains that the Fourth Mizukage unified previously independent islands, explaining their lack of unity. Kagura manages to contact Misuno, who reports that Chōjūrō left for the front-lines, and suspects he'll order Kagura to do the same soon. Misuno is leaving to join Chōjūrō. Buntan complains about their situation. Kawaki is bothered by Mitsuki following him. Kajiki chides Ikada for letting an important engine part to go out of stock, and is unwilling to let him go get more because of Funato activity. Boruto offers to guard Funato while he retrieves the missing part. Kajiki allows it, so Ikada and Boruto depart on a small ship made by Ikada. It's the first ship he's made, his dream being to travel the world in a ship of his making. They continue on their way to the island with the engine part factory.