The green-haired girl in [[Smile Precure!]] who has a strong sense of justice and an 'older sister' disposition, but also hides a girly side. She transforms into [[Cure March]]. Bears a striking [[look-alike|physical resemblance]] and [[name connection]] with [[Midorikawa Ryuuji]] from [[Inazuma Eleven]].

She is the oldest of 7 siblings, born in the following order:

* Midorikawa Nao
* [[Midorikawa Keita]]
* [[Midorikawa Haru]]
* [[Midorikawa Hina]]
* [[Midorikawa Yuuta]]
* [[Midorikawa Kouta]]
* [[Midorikawa Yui]] (born in episode 42)
緑川なお