When the Boruto franchise kicked off, it differentiated itself from the Naruto series in a big way. It foreshadowed a heartbreaking reality, with Konoha decimated and Kawaki taunting an older Boruto. The villain gloated, adamant about how he'd send Boruto to the same place as his dad. The series has kept it vague as to what happened, though.
Source：https://www.cbr.com/boruto-kawaki-naruto-death/
