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).
须
=
彡
+
页
:
Xu Xian (xu) received some important papers (页) in front of the space station (Ø1). In the paper it is written that he has to (须) get rid of his fake Santa Claus beard (彡) as well as his nice 八-shape moustache (须; 八字胡须), so Xu Xian is quite desperate has he loves his beards.