Akiyama Yotsuba (秋山 四葉,Akiyama Yotsuba?) is the fourth Cure in ღLovely! Precureღ. Originally, she is the last Precure who have failed to battle the evil, she have failed to Cure Devil, a dark replica of her, she already lost her partner, Burning, who died after protect her and her Precure Crystal is lost, which that means she can't become a Precure anymore, she is very depressed and become an idol in the earth to find the lost soul of her partner, until she met Aida and her comrades, she have her fighting spirit back again and want to become a Precure again to save the world.
Her alter ego is Cure Light (キュアライト,Kyua Raito?), she control the power of sun.