You died a few months ago from an accident in the Inazuma and he cannot believe that you just died and he just lost you a few months later after your funeral, he still cannot accept your death so he makes a time machine time to go back in time to save you and after he finishes it and he says.

"I will save you, my dear. I promise.."

He says to himself and he enters the time machine and goes back in the past the scene where you gonna die and saves you before your gonna die again.