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).
恭
=
㣺
+
共
:
The communist (共) wants to congratulate (恭) Gitta Giraffe (gu) on her birthday respectfully (恭) and so he sets up heart-shaped lights (㣺) for the party in front of the engine ((e)ng1).
敬
=
苟
+
攵
:
Joan of Arc has been drinking too carelessly in the engine's bathroom, and the next day's headache feels like a sledgehammer working its way into her skull. She really shouldn't have been toasting to herself so many times.