Cyber Team in Akihabara/Tear Jerker

• Episode 20, from start to finish, details Tsubume suffering an emotional breakdown when she sees how a loving family behaves. Even the Dub actress captures it perfectly.

Tsubume Utorii: "You're nosey, Hibari... It's not fair! Why should you have everything? Why is it always about you? Hibari has a father who loves her! Hibari has a mother who loves her! Everyone is doting all over her! Hibari has a place to go home to! Why do I have nowhere to go? No one doting over me? It's just not fair! All I want is..! ...Is..." * sobbing*

• Also lots in Episode 25, when the girls are spending their last day on Earth before leaving, and are contemplating all the loved ones they'll have to leave behind.
• And of course Episode 26, especially when the Pata-pis all develop souls and free wills and decide to go with Crane in the girls' place, and all the girls, even Tsubame, are crying and begging them to come back.