血族

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.

族 = 方 + 𠂉 + 矢 : Zapatista Zebra (zu) has become a member of the 低头族 (族). Just inside the space station's entrance (Ø2) he is constantly looking at his square (方) In his hands. Using a key (𠂉) he can unlock it and look at his precious darts (矢) which are hidden inside.