Datte Ikitekanakucha (だって 生きてかなくちゃ; Cause I Gotta Keep On Living) is Abe Natsumi's second single. It was released on June 2, 2004. The single V was also released on June 2, 2004 and it sold 18,648 copies. The title track appears on 2nd ~Shimiwataru Omoi~, Abe Natsumi ~Best Selection~ 15 Shoku no Nigaoe Tachi, and the Petit Best 5.