忆苦思甜

忆 = 乙 + 忄 : Maud Younger (y) often recollects (忆) her time fighting in the mma world championship using her beloved flail (忄), which she keeps framed in the space station's bathroom (Ø4). Once she won a silver medal (乙), which hangs next to her flail. She is fond of recalling these dear memories (忆).

苦 = 艹 + 古 : Karl Koala decided to repent for his sins and retreated into a cloister inside the space station. There he leads a very simple life full of hardship, e.g. he gave up on eucalyptus and just eats very bitter artificial lawn.

思 = 心 + 田 : Socrates is feeling blue in front of the space station. He's thinking of burying his heart under a field. When he finishes, he realizes that he has created some kind of small planet, with his heart at the center.

甜 = 甘 + 舌 : In the anthill's kitchen (an2), mother Theresa (ti) and the cow (甘) lick each other with their tongues (舌) and find that they are super sweet (甜).