Spring has arrived, and the narrator asks the girl if she wants to join the Astronomer's Society. The girl says she doesn't want to join because she's not interested in anything. The narrator tells the girl that she can join the club because she has found a ship that belongs to a member of the club, and that member's age is about one-third that of the other club members. He then tells her about a star called Spica, which he says looks like a big star, but actually is two smaller stars, working together in an endless dance of light and shine. He also tells her that a man named sempai told him that martians look like octopi, and he says he's been looking for a way to express his love for her, but he can't find it.