A U.S. investment fund that holds shares in Japan's Fuji Media Holdings Inc. has issued a letter calling for the resignation of a top adviser as the company's subsidiary broadcaster faces scrutiny over its handling of a sexual misconduct scandal involving former popular TV host Masahiro Nakai.In the letter dated Monday, Dalton Investments LLC called for Executive Managing Adviser Hisashi Hieda to step down as director, saying recent events have highlighted the dysfunctional governance of Japanese broadcasting giant Fuji Television Network Inc.Dalton said in the letter, "Why has a single dic…READ FULL ARTICLE