What is “VIO”? It might be too late to ask it…

The word of “VIO” , which has become very popular word lately, has been used as a word to indicate where the pubic hair growing. There is no formal definition. But we use this word as follow,

“V-Zone” is a name of a range of pubic hair which is covered with underwear.	“V-line” is refers to V-shaped part that hair easily protrudes from underwear.	“I-zone” is a name of a range of pubic hair which is refers to hair from front to back. It is the part from around female genitals to the anus.
Roughly say, V-zone is front are and I-zone is a area from front to back.	“I-line” is referring a part around female genitals. It is very delicate par and complex. Please take care deeply in your caring.	“O-zone” is refers to hair around anus at I-zone. There is no so many hair.