Yuusha ga Shinda! - Vol. 3 Ch. 33 - Rooftop Battle

[MangaDex]

 

[NoMemory]

Ah so Isaac learned some of Gary's stripping techniques lloll, also so since he doesn't necessarily needs the hero's body for the sword, does that means he's going to be in his real body?, or is the sword simply needs a working mind to use it's magic? ( like not a body that's unde control of someone else's magic )

 

[DarkOblivion21]

Two theories. Either Touka's spirit is what matters when it comes to wielding the sword or Yuna is the next hero chosen by the sword.

 

[Gredias]

Bet it'll turn out to be something like low compatibility with the hero's body

 

[Winchan]

How noble, Isaac.

I don't think it has anything to do with having "low compatibility" but I guess it has something to do with Touka's soul.
And since the dead body of Shion has low mana and Yuna currently got 6 levels, it can be that it is relative to the current body's power.

 

[daxude]

BLAKE NOO