Looking for an anime: a boy searching for his missing sister in a European-style city
Hi everyone. I'm trying to find the name of an anime I watched randomly on TV when I was a kid, but I only remember a few details. What I remember is that there were two siblings, a boy and a girl. At some point, the girl suddenly disappears, and the boy starts running through the city looking for her, going through streets and alleys. The city had a very European look, similar to German-style villages, with many houses looking almost the same, kind of like the towns shown in Marley and Eldia in Grisha Yeager's Flashback in Attack on Titan. I don’t remember the genre (action, mystery, drama, etc.) or the TV channel it aired on. That's all I can remember. Any help or guesses would be really appreciated.
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