What is the final outcome of stone of destiny Gate animation?

Ending: Hong Liqi, who will die when she returns to the Beta World Line, is also immersed in the struggle, but she knows how important and irreplaceable the truth is in Rintaro's heart, and persuades Rintaro to save the truth (that is, jump to the World Line). Rintaro, who was aware of her mind, confessed to Hong Liqi, and Hong Liqi deeply embraced Rintaro after Rintaro confessed.

Later, after Rintaro entered the Beta World Line, in order to prevent the occurrence of World War III, he took Hashida Itaru's daughter Amane Suzuha, who came back from the future, back to the past broadcasting room to save Hong Liqi, only to find that he killed her by mistake. Rintaro, who collapsed again, saw the information from her future and planned to let herself fail once.

In order to enter the world line of "saving Hong Liqi once failed and starting to make a time machine", successful research results were obtained. Rintaro returned to the past again, restored the scene, but saved Hong Liqi's life. Finally, he changed the result without changing the reason and got rid of the world line. No one died, and the story is over.

Extended data:

Synopsis of the Gate of stone of destiny-

The hero Okabe Rintarou (voiced by Mamoru Miyano) is a college student suffering from a serious middle school disease. He and his partners, who call themselves "the fierce truth of Phoenix Academy", formed the Institute of Future Invention, and conducted all kinds of strange inventions and investigations in a humble laboratory in Akihabara. ? On July 28th, 20 10, Okabe and childhood sweetheart Mori Shinyo (voiced by Kana Hanazawa) went to the science lecture hall, where they met the talented girl Morise Hongliqi (voiced by Asami Imai).

Something unexpected happened. Okabe heard a scream in the hall corridor. He heard the sound and found the wrasse lying in a pool of blood. Okabe told this story to his friend Hashida Itaru by SMS, which turned the world upside down. The so-called "future props" in the laboratory can really control the process of the world, and Okabe has since become a lonely observer. ? All this is the choice of destiny stone gate.