黑夜中的英雄归来。唯一的小宇

　　After witnessing the murder of his parents, a young billionaire makes a solemn vow to dress up like a bat and wage a one man war on crime! But when this solitary savior realizes that "one" is the loneliest number to wage a war with, he'll set off on a musical adventure to rescue the city from the greatest super-villain of all time and find a super friend.