Lesson 478 is the 478th chapter of the Gintama series.
In a flashback, when picked up by the Chidori, Sakamoto offered to buy the whole from Mutsu. He then vomited at the ship's captain in the face and the trousers, and was taken away as a result. Seeing Mutsu flatly turning down his offer, Sakamoto changed the offer into "the ship along with the slaves."
At present, Gintoki was amused at how Sakamoto managed to buy, only to be replied that the latter was a swindler. Suddenly, Mutsu was informed of Sakamoto being held hostage by the Chidori, with the Kaientai fleet being the ransom. However, she charged cannons at them, claiming that as a chance to kill off her boss. Though, she and Gintoki swam to the enemy's ship, using the firing as a distraction.
In another flashback, Sakamoto traded with other slaves while in jail. When questioned by Mutsu, he insisted on his earlier offer, which was turned down again. Still, he tried to persuaded her to make business with him instead of selling slaves, which she claimed as her duty. Agreeing with her, the Chidori leader reminded Mutsu of her position, and was vomited in the face by a slave and Mutsu.
Remarking how her former work was indeed boring, Mutsu recalled on how she took interests at Sakamoto's way of business. At his cage, she gave a rock from the floor to an old lady as a massage tool and was given a dish of pickled radish, which she hesitatedly took. Later, upon learning the captain's plan to kill her and the slaves after her father's death, Mutsu gave the cages' keys to Sakamoto, instructed him to free the slaves and escape, and returned an empty dish to the old lady.
Characters in order of appearance
- Sakamoto Tatsuma: (To Mutsu) Look at my customers. The interesting things about business is that you can put a smile on someone's face with just a single bottle of cheap booze. Sellin' a human is a business that won't create a single smile. It's boring no matter how much ya earn. It's written all over yer face.
- Sakamoto Tatsuma: You give and you're given to. That's what business's all about.