A 21st century girl accidentally fell off a cliff and obtained the world-traveling system.
Mi Yaxing: I will protect you from now on.
Zhou Xu: You are the light in my life. I am lucky to meet you.
Wen Kexing: Sister, I really don't know what I would do without you.
Dai Mubai: When I met you, I finally understood what love at first sight is.
Wei Wuxian: Thank you for always trusting me and staying with me.
... ...
Purpose: to fill the regrets in the heart