The following is a possible concise summary of the text:
A man named Chen Fei has a system that gives him tasks and rewards related to his friend's sisters, Bai Yinuo and Bai Xiaonuan. He completes the first task by asking for Bai Yinuo's photo and gets 500,000 yuan. He then kisses Bai Xiaonuan in front of his friend Bai Ze at an internet cafe and gets enhanced physical strength. He also tries to get their contact information and flirts with them. Bai Ze is confused and annoyed by his behavior, while Bai Yinuo and Bai Xiaonuan are shy and embarrassed.
Some possible key facts extracted from the text are:
- 1. The narrator kissed Bai Ze's sister Bai Yinuo in front of him and got a reward from a system.
- 2. The narrator also asked Bai Ze for Bai Yinuo's photo and got another reward from the system.
- 3. The narrator met Bai Ze's other sister Bai Xiaonuan at the internet cafe and kissed her too, shocking Bai Ze and Bai Xiaonuan.
- 4. The narrator got a random reward of enhanced physical strength from the system after kissing Bai Xiaonuan.
- 5. The narrator added Bai Xiaonuan's contact information and asked Bai Ze to help him add Bai Yinuo's contact information as well.