血液凝结

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.

液 = 夜 + 氵 : Maud Younger (y) wanted to empty her chamber pot (夜) in the elevator's bathroom (e4), but she finds the toilet clogged. She'll have to store the liquid (液) in an empty water bottle (氵) instead.

凝 = 冫 + 疑 : Someone ate one of Nefertiti's (ni) popsicles (冫) and now she rounded up her suspects (疑) in the engine's kitchen ((e)ng2). To make things easier she congregated (凝) the suspects into a sticky mess using the rest of her popsicles.

结 = 吉 + 纟 : The silk worm and Joan of Arc are in an awkward situation. The giant has pulled the worm so long that she's long enough to tie Joan of Arc to one of the pillars of the elevator's kitchen, and to even make a knot.