In the midsummer of their second year of high school, Lu Yan, a young man, and Su Qi, a young girl from Nancheng No. 3 Middle School, were ordinary students with the rare talent of telepathy. A sudden disaster tore apart the night sky, and an extraterrestrial civilization called Star Skull descended. They eroded human consciousness with black mist, turning living people into empty shells that had lost themselves, and the end came suddenly.
The former campus has become a refuge for humans, and the two pilot the exclusive mecha "Bai Lan" and fight side by side with "Xingqi". Su Qi relied on the intelligent assistant Ling Qi to provide computing support, and used the over-limit spiritual link to save Lu Yan who fell into danger several times at the critical moment of life and death. The bond across the war became increasingly profound. After three years of arduous resistance, they worked together to defeat the starship mothership, close the deep space rift, and protect earth civilization.
Ten years after the smoke cleared, Nancheng returned to the world of fireworks, and his alma mater became a place of rebirth. The young man who was once a bloodthirsty man lost his edge and became a mentor to cultivate a new generation of guardians. The war has become a thing of the past, and the evening breeze and camphor fragrance have returned to the campus. They have finally held on to the long and stable summer that they have earned with all their efforts.
