Talk:Uguisumaru/@comment-111.94.202.187-20160517130541/@comment-151.16.60.227-20160519131939

Kiwame send.off line to be precise.

He's pretty chill about it, because it is gameplay wise: the sword will not be harmed in any way and the upgrade is guaranteed to work. 

Adding chances of failure or being destroyed would be a massive jackass move by the developers, but this is not the case.