(Bloomberg) A fund manager who profited by buying Japanese trading companies years before Warren Buffett invested in them is now targeting a very domestic sector: drug store chains.Most Read from BloombergHyperloop One to Shut Down After Failing to Reinvent TransitHarvard Financial Pain Grows as Blavatnik Joins Donor RevoltVilified Zero-Day Options Blamed by Traders for S&P DeclineTencent Leads $80 Billion Rout as China Rekindles Crackdown FearGiuliani Files for Bankruptcy After $148 Million