So I've been thinking about this, and I've come to the realisation that Haru from Extraordinary You reminds me so much Nam Shin III from Are You Human Too, which explains why I've taken this sort of, 'PROTECT HIM AT ALL COSTS!' attitude to him. They're like these blank canvases of kindness and pretty and puppy dog smiles learning how their worlds work. I mean, look at them!
I also love the fact that their purpose is to support Dan Oh/So Bong, and the girls' happiness is their happiness?
They're soft af but most importantly though, they got protective vibes like woah:
Also, height differences rule!
(As an aside, you could say that Bae Kyung and Nam Shin are very similar too, but the latter is way more of a douche than the former...)