What is the door of the anime destiny stone about? Show that you can't understand

Let me tell you this, which is the story of the protagonist drifting for a week, from the A line (that is, at the beginning of the press conference) to the B line (that is, when Christina was resurrected) and then back to the A line, in order to save Christina and Maiuri, and finally reach the Destiny Stone Gate line. Doors of Destiny cartoon is adapted from the latest popular XBOX game masterpiece, and its English name is Steins Gate, which is 5pb after the sci-fi work Chaos Head. Games released the second work about Sanhongji (the last work was Noah, the transplanted version of Sanhongji of CH).

Because of an incident, the protagonist's mobile phone has the ability to send messages to the past, so a group of people want to move the world line to other branches by changing the past ... The incident took place from Shibuya to Akihabara, and the protagonist Okabe Rintarou, a college student with a secondary school disease, claimed to be a crazy scientist-Phoenix College.

He invented the "telephone range" in the party's "Institute of Future Machinery". This prop has an amazing function like jumping in time and space, and it can send emails to the past. One day, the protagonist met a talented girl, Mu Luhong and Li Qi, who was about 18 years old, but just a few hours ago.