Cale & Choi Han relationship in a nutshell:

Cale: *looks and/or gets in trouble*
Choi Han: *murderous expression*
Cale: (I-is he… going to kill me??)
Choi Han: (I’m still not strong enough to protect Cale-nim!)
Choi Han: …I need to get stronger
Cale: *pales* (Oh no, he is definitely planning on killing me!!)
Choi Han: (Just look how weak and sickly he looks…)
Choi Han: A lotstronger
Cale: (…I’m so dead )