Those who fool fate will be fooled by fate. When you follow the established future and try to change the present, you are already walking on that destiny line. Qiyeyan said so.
Nanaya Yan, who once reached the root, was captured by the consciousness of a certain world when he was wandering in the universe. He replaced Shirase Fuichiro's life, and later awakened after being stabbed, but the work was done, and Nanaya who had completed his destiny was bound to the world. In retaliation, he destroyed the fate of Dazai Osamu and Nakahara Chuuya and left for a foreign country.
Many years later, Nanayayan, who was cultivating himself, learned about the tragic current situation of Dazai Osamu and Nakahara Chuuya in Yokohama, and decided to go back to make up for his mistakes and solve the problem of being bound to the world.
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Demining: 1. There are many private devices, there may be bugs, and the research is very thorough.
2. The supporting role may have CP, and those who don't like it will be very interested.
3. I am not familiar with fgo. I only borrowed a few settings from Xingyue, which can be ignored.
Intention: Unyielding