Episode 8. Elly coming to Koba's rescue. When he tries to argue with her that human emotions don't follow logic all the time as reason for him to stay, she replies that she is thinking with human emotion by rescuing him.
Episode 15. IF is an invincible kaiju with Adaptive Ability. Every time the DASH team or Max attacks, they only trigger its Power Copying, and they realize how they can do nothing to stop it from bringing The End of the World as We Know It. Then a little girl with severe vision impairment approaches it, and start playing music. Eve's reaction is...shapeshift to form music instruments and play along with her.
Kiif's desire to prove to humans that not all Aliens Are Bastards and some of them can be benevolent.