It's the day. the day to honor Kushina - which Minato does every year on the same date as the 7-tailed beast incident and Naruto's birth.Although it is a painful memory that has left scars, both mentally and physically, Minato tries to see it as a day of renewal, to start a life over in a different way, even if it was a difficult loss.
Of course, he doesn't forget his son Naruto's birthday, so he goes to pay him a visit first, always being greeted with Hinata's warm smile and Boruto Himawari's excited smiles. This is enough to warm his heart at the beginning of the day, as if it were some kind of support.
After visiting his son and his new family, he takes a peaceful walk to the cemetery where Kushina's grave is, carrying sunflowers, just as Kushina liked. He approaches the place but stops halfway when he sees a person near Kushina's grave, which catches the former Hokage's attention and curiosity. He tilts his head slightly trying to recognize the person before approaching silently and slowly so as not to scare them.