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Episode 1 "My Sister's Diary"

The story is about Yukiko keeping an observation diary of Ayutori.

The title is a play on "The Diary of Anne Frank."

I didn't know what "The Diary of Anne Frank" was about until I was in my 20s.

I first learned about it when I happened to see an animated movie on TV, and I never imagined it was such a sad story. I was really shocked.

When I used it to parody the title, I remembered and went "Ugh..."

The photos that Takeru and Ayutori are sorting through are from when they were searching for buried treasure.

In Yukiko's diary, she writes "jinja ale," but since she was a child, she didn't mean ginger ale as "jinja ale."

I guess they're thinking "Yell!"