[Machine Translation] The fourth round of the Experimental Competition is coming up! Will Taiyo Elementary School, currently the closest to the championship, win? Will Wanstar Elementary, caught up in a conspiracy, fight back? Meanwhile, Won-soo realizes that there is a conspiracy behind the showdown between Sun Elementary and Wan-Star Elementary, but he is unable to find a solution. Then, Woo-joo's unexpected action forces Won-seo to confront Sun Elementary's Hong.... Won-soo comes up with an idea to take advantage of this opportunity. Let's have fun learning about the phases of the moon, how lunar eclipses work, the characteristics of the moon's surface, and various other scientific knowledge about the "moon"!