Quickly Travel Through Time and I Become Bai Yueguang of All Members

[No CP but single arrow] [The heroine is a gentle boss] [No female protagonist] Jiang Ran is a time traveler, and he completes his tasks conscientiously every time. Who knows that when he leaves, he turns into Bai Yueguang. Tentative world World 1: The last five years have been filled with countless sufferings, but they are the days when we first met. Maybe in the next five years, you will come back? World 2: How can we forget the love of our youth? Your appearance shocked my whole summer. World 3: The darkest moment of the Zerg, your arrival illuminates everything. The decisive battle is also the time for you to leave. Other worlds are tentatively decided. If the introduction is incompetent, please move to the main text.