血跡斑斑

血 = 丶 + 皿 : Mnemonic symbol: blood transfusion.

Xu Xian hurt himself and needs to get a blood transfusion in the elevator's bathroom. He found a petal leaf as donor, which is bleeding droplets into a bowl; Xu Xian gets the blood from the bowl as infusion using some tubes.

迹 = 亦 + 辶 : Joan of Arc (ji) is caring for the also-ran (亦) after she finished a marathon in the space station's bathroom (Ø4). The also-ran was wearing gladiator sandals (辶) but already after half of the race they were worn through, and Joan of Arc can see the footprints (迹) the also-ran left with her bare feet when she came in.

斑 = 文 + 玨 : Beelzebub (b) is reading a thick book (文) about necklaces (玨) in front of the anthill (an1) when he spots that there are a lot of yellow spots (斑) on each page.