It's not time travel, it's the little things between a woman and Feng Ying.
The Kazekage is the powerful and ruthless Godaime Kazekage.
The woman is a taciturn and steady woman in her early glory.
He married her for the rest of his life.
Respecting each other as a guest lasts a lifetime, and holding the hand of a child lasts a lifetime. No matter what happens, he will never leave her alone.