 If you liked
Haruka na Machi e
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 ...then you might like
Undercurrent
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Our MCs have an important male figure from their lives disappear suddenly, which leaves them distraught. It also shapes their lives and their personalities - they constantly wonder why their relative left, sometimes blaming said relative, and sometimes, themselves.
Both anime are slice of life, and while things do get resolved in the end, you still feel like both the manga ended with open endings.