[KiraYamatoFan]

Spoiler for story details:

Well, I thought recycling the game scene was necessary in the measure that Welkin saw the shooter and then encounters him later in the midst of the vengeful rampage. It was sure painful for me to revisit that scene again, but I'd call the beginning a put-into-the-context part.

I thought about using the Eurasian part of scalping, but wasn't sure since documentation is not as extensive as it was for America. With the nature part, that's why I first thought of Faldio giving Welkin a book about how people such as the First Nations lived, especially considering the harmony with nature. But now that you bring your points, there are quite interesting. I'll have a look at it.