"Chiaei-chan, if you could take Aei back to your mother's side, would you be willing?"
Chiaei heard his words and quietly asked, "Is it mom looking for us?"
"Sort of."
"So if we go back to mom's place... can we still see brother and Hanabi sis every day like now?"
Uesugi Sakura replied, "I don't know. If it's in Tokyo, you can come over and play every day, but if your mother wants to take you away from the city, then it'll be hard to meet."
In modern society, it's possible to communicate through video chats.
But long distances will always cause feelings to fade.
Just like the protagonists in "5 Centimeters per Second"... separated for so many years, initially exchanging letters, and eventually, all that remained were the thin memories.
When Hanamaru Hanabi went abroad, Uesugi Sakura tried not to miss her.
But everywhere in life was filled with memories of her, and he began to find ways to ease his feelings.