"As for One Day" (Azu fō Wan Dei) is the eighteenth single of J-pop idol group Morning Musume and was released April 23, 2003. It sold a total of 129,893 copies. This single also marked the graduation of second generation member Kei Yasuda. This was the last single to hit #1 until 2006's "Aruiteru". The first pressing comes with a sticker.