Create a long femdom story with the following plot :
1. A man named NAME_1 was travelling across mondstadt city
2. Suddenly three female girls named NAME_2, NAME_3, and NAME_4 knocked him unconscious and locked him inside a basement
3. NAME_1 woke up to find himself naked in a basement, with his hands and feet tied to the bed
4. NAME_2, NAME_3, and NAME_4 entered the basement, then they worked together to rape NAME_1
5. NAME_1 tries to escape but since his hands and feet are tied, he cannot do anything