Want its season 2 and have some questions like qi yue didn't forgot qi shuo as she ask lu xiao what if there son come from future and say not to marry lu xiao and lu xiao also delivered his Idea as he is going to make time machine. And who was the little girl with qi shuo and how den su ling react to qi yue message is like she still remember qi shue and want him as her husband. So what if qi shuo came back because he got information from his ring ai that his mother is going to make a mistake by asking help from xu xoyuang to have qi shou back as her son, so for which qi shou travel back to his time .(as professor lu xiao told that he still exist in his main timeline by which it means that qi shou have a lot of work pending with lu xiao )to make his mother not do the mistake he might travel back and want to be a cc tv camera as he said in previous episode he is still guiding her as her son but this time not directly but indirectly and after that, he also have to work with lu xiao because without him lu xiao can never make time machine as in first episode .we saw that he is the one have the potential to make time machine and its coordinates to travel back to time. so as this time lu xiao also travel back with qi shou to findout who was qi yue son . Who actually a main reason behind lu xiao and qi yue love and marriage life as they forgot him. but when they both travel back qi shou have fainted (because as we know that same person in one time line can creat a time variation dilation) because qi shou travel with lu xiao would have aged more than qi shou with qi yue at 2021 for which main qi shou have some memories glitch and to save him from that illness lu xiao travel back to his orginal time. As now lu xiao knew qi shuo is qi yue son who change her fate. he started treating qi shou like his son in hospital .and as we know that den su ling has qualified the exam and became a doctor .now she will be the one who will treat qi shuo. and after that lu xiao will decide to travel back in time to know the full truth he
Had forgotten , so he will have a eye on qi shuo and qi yue (of past) and he will note and record it all and know that den su ling is the one who have wrote qi shuo name in her diary and why qi shuo left qi yue house and live in a rented house . After knowing all the truth lu xiao will come to a conclusion that he will change his student cum son fate and give him a life he deserves. So he will came back to his time and reveals the truth that the person is non other then qi shuo who had change qi yue fate to qi yue .and after that it might happen that qi yue will cry a lot and run to find his son. but will find nobody in the hospital as qi shuo and den su ling left the hospital earlier and went to another hospital because den su ling feels a familiar feeling with qi shuo because she might forgot her but her feelings for him will always be the same. Lu xiao will take the full responsibility to make qi shuo come back .but still he will have a question that why qi shuo came back and who was the girl with qi shuo in beach . after a lot of research he will able to find out that qi shuo have made a travel again with his daughter to remind lu xiao to make a time machine .and than lu xiao will search for qi shuo suffering from memories glitch. and there he will come to conclusions that qi shuo dont want to get caught and still hiding from them and escaped from den su ling by tricking her . later we will able to see that den su ling have also some memorie glitch of her past with qi shuo and she will ask qi yue and lu xiao for it and they will find qi shuo in the photo studio with a photo of qi yue , lu xiao and him self in his hand but forgot all memories with all of them. crying and suffering to remember everything later on den su ling will come to comfort him ,but he will refuse her to touch him and qi yue will slap him and would say him that (you are my property and priority how dare you make you mom cry u little brat) and these three will spend time with qi shuo to make him remember them . that will a fun to watch qi shuo as in qi yue place doing the same thing to prove her wrong that she is not her mother and after time pass with all fun he will remember qi yue and there will be a happy scene . As we know lu xiao have made a promise to give his son cum student a good life he and qi yue will try to make qi shuo and den su ling come close . this time den su ling will treat her like he treated her earlier and make him fall in love with her, but than also qi shuo couldn't be able to confess her because he think her as her aunty so lu xiao and qi yue will comfort him to give time to relationship and take time . Here lu xiao and qi yue will tell him how the story has taken an another path and no one could change it and then on a time will come where ,we will see that qi shuo and den su ling started dating eachother and after a long time they will be getting married and this time everyone know who is qi shuo. all will remember him this time and her qi shuo will receive a full amount of his given loan to xu xuayoang where ,he will say finally you are too getting married and will introduce him to his wife who is non other than lu xiao ex girlfriends who will little bit tease him. And after all we will see den su ling and qi shuo having a baby girl and have a familyphoto with qi yue , lu xiao, his little brother lu shuo, den su ling , and him with are daughter and will have a happy ending the show will end here with happy ending and qi yue remembering the movie about time where hero and heroine get happy ending.at last plot we will see lu xiao and qi shuo talking how to make the same change for which qi shuo with his daughter will travel back and the same scene will be repeat which is season 1 last episode seen and the end .

This is my theory what's your😊😊😊