ranaliuz:

Then, everything was destroyed. Everything but a lone machine.

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This is purely my wild imagination, please don’t take this seriously ;p

I want to portray Kongo-sensei at ‘the end of the world’. As he witnessed the destruction of human civilization, did he feel lonely? Or maybe, he didn’t feel anything at all, because he is only a ‘machine’?

I think, he felt lonely all this time.