Free!
... that a commercial for the anime Free! led fans to create various fan works expanding upon the nameless characters from the ad?
... that a commercial for the <a href="./Anime" id="mwEKI" rel="mw:WikiLink" title="Anime">anime</a> <i id="mwEKM"><b id="mwEKQ"><a class="mw-redirect" href="./Free!_(anime)" id="mwEKU" rel="mw:WikiLink" title="Free! (anime)">Free!</a></b></i> led fans to create various <a href="./Fan_labor" id="mwEKY" rel="mw:WikiLink" title="Fan labor">fan works</a> expanding upon the nameless characters from the ad?