One of the most famous and popular samurai in Japan, Nobunaga Oda, possesses a dull business man who is a good person but never can be successful because of his tactless and irresolute personality. Nobunaga faces modern problems such as caring the parents, housewife's loneliness, and SNS obsession. On the other hand, this dull business man Kazuo is in the deep confusion because he has no memory while Nobunaga possesses although he feels his life seems turning better.