Nachu (なちゅ; born 23 December 1984, in Osaka Prefecture) is a Japanese tarento who is a former member of the female idol group SDN48. Her real name is Natsuko Takekawa (竹川 奈津子, Takekawa Natsuko). Nachu grew up in Tokyo. She is represented with Watanabe Entertainment.
Source: “Nachu (SDN48 member)”, English Wikipedia (CC BY-SA 4.0), excerpt