After seeing this I wanted to investigate a little bit and realized that Yuuka was in Woodstock. I didn't believe it but yeah: she's a hippie.

I mean, Yuuka is the embodiment of "Flower Power".

"That look... What is the purpose of a foreigner in a place like this?"

I should have put a lead ball in my shitty life, but before I knew it, I was in a field of sunflowers. That woman was there.
In those days when I was young and foolish, back when everything was obscured by the haze of marijuana smoke, she was the only woman I could see clearly.

She imagined something like that. At first, she just wanted to draw Kazami Yuuka in hippie fashion by hanging on Flower Children.

Obviously this needs checking but this is the gist of the story of the image.