Otoko no kosodate (2007)

With three kids and a wife, Atsushi Yano should be going home right after work to help around the house and spend time with the kids. Instead, he goes out with his friends and flirts with other women. All this changes when Atsushi's wife passes away suddenly and he is forced to assume the role of dad, with all the responsibilities that come with being a single parent. Can he do it or will he end up passing the responsibilities on to someone else?