What is the connection between the request encoding and showing characters? The way characters are displayed depends on the response encoding, which seems to be correct.
Or is what you're displaying submitted in a form as part of the request? If so, make sure that the page that contains the form is sent as UTF-8. Browser generally use the form page's encoding as the encoding for sending form submits.
In addition, add this to your FORM tag:
<form ... accept-charset="UTF-8" ...
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