Suika (スイカ?) is a descendant of modern humans and an inhabitant of Ishigami village.
She tends to wear the helmet to help her see better because she has a disease called "blurry sickness" or in modern terms nearsighted. She wears a black dress that covers her whole body and has a rope attached to her neck like a necklace and it is common for her tribe to wear them most especially for girls.
Since Suika had the blurry eye disease (nearsightedness), she constantly scrunched up her face in an attempt to see things. That ended up scaring people, so she started to wear her trademark melon helmet.
Senku unmasks her. chapter 28 p3
Kohaku thinks she is cute.
Her mask was used by Ginro and Chrome during the Village Games.
|Male||Chrome • Ginro • Kinro • Magma • Kaseki • Kokuyo • Jasper • Tetsuken|
|Female||Kohaku • Ruri • Suika • Shirogane|