Reword.

This inscription was added to the blade by Tecchin Tecchikawahara instead of Destroyer of Demons at Kaiyochi's request.

Kaiyochi requested Tecchin Tecchikawahara to add this inscription to the blade, instead of the Destroyer of Demons.

Do it again.

At the request of Kaiyochi, Tecchin Tecchikawahara replaced the inscription on the blade with this one.

Again.

By the request of Kaiyochi, Tecchin Tecchikawahara made the change to add this inscription onto the blade, rather than the original one that read "Destroyer of Demons".

Yes.

Certainly! At Kaiyochi's behest, Tecchin Tecchikawahara replaced the initial inscription on the blade with this new one.