血本

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.

本 = 一 + 木 : Beelzebub finds a Christmas tree in the encampment and feels like eating its roots. He uses a flute to chop the roots right off.