小巴上的少女

I have a friend got the experience very similar, three girls back home together by 16 seats Van , two in front and one at the back, the Van is full , after arrive Tai Wai, many people going down and the Van continue moving , when the girl in front look back to talk to her friends , she discover that there's a girl wear red skirt turning her face down sit next to her friends, she was so afraid and left the Van , the next day,she ask the friends next to her whether she see or not, and the girls said yes, but the girls at the back said there's no people sit next to her. She can't see anything. This is truth