Creepy legends: Aka Manto

Aka Manto is a popular figure from a Japanese legend. There are various versions of the story, of its origins, but the ending remains constant throughout the years.

The victim dies.

The story is this:

Aka Manto was a very handsome man who was admired by girls. Allegedly he was in school and was tired of being hounded by girls who fawned over him. Perhaps he was a one girl type of guy, or maybe he was growing tired from being constantly followed and have girls fighting over him.
To escape them, he chose to hide in the female bathroom stall. This version doesn't make sense to me because why would he hide in the girls bathroom and not the guys' where girls are not allowed?
Or did he think that was the last place they would look for him?
Anyway, he is reported missing and days later his body is found.
But his soul remained stranded in the bathroom.
The legend goes that any time a girl wants to use the bathroom urgently, she is led to that very bathroom stall and when she finds there is no toilet paper, a strange voice speaks up: red paper or blue?

Okay, pause. You are in the girl's bathroom and a guy's voice speaks up offering paper and you actually reply? In that case, it would be better to keep quiet, not use the toilet paper and report to the teacher. Clean afterwards.

Back to the story, supposedly the girls would reply and if they say red, the skin from their backs are torn off. If the answer with blue, they are strangled until their skin turns blue, or in another version, their blood is sucked away.

In yet another version, a smarty pants replies with yellow and has her face thrust into the toilet. Used toilet. Yuck!

Apparently, you can get away with it or in yet another version, the person is dragged down to hell.

Now why would Aka Manto be so vengeful?
Did he have to kill himself because a girl made his life miserable? And why offer his victims toilet paper?
Did some obsessed girl kill Aka Manto with poisoned toilet paper?

It is a creepy legend, but I wish the story was straightened out so that the motives would make sense.

Scare scale 3/5