忽
=
勿
+
心
:
Helga Horse (hu) got new bat wings (勿) and carelessly (忽) flies around in front of the space station (Ø1). Suddenly (忽) she realizes there's no oxygen to breathe and the shock is enough to have her heart (心) nearly jump out of her chest.
必
=
丿
+
心
:
Mnemonic symbol: 忽必烈 [Hūbìliè], Kublai Khan. Certainly (必) Kublai Khan (必) has to keep face, but he cannot hold it any longer. In the space station's bathroom (Ø4), He absolutely has to (必) tell Brunhilde (bi) his love for her strong character and offers her his heart (心). Brunhilde is a bit embarrassed because all she has to offer in return is a banana (丿). Kublai Khan feels like his heart has been crossed out (the 丿 stroke is crossing out 心 in 必).
ardent / intense / fierce / stern / upright / to give one's life for a noble cause / exploits / achievements
烈
=
列
+
灬
:
Li Qingzhao (li) wants to start her grill (灬) in the elevator's bathroom (e4) with gasoline. As she ignites the liquid Gabriel (列) jumps in and saves her at the last moment from the fierce (烈) fireball.