If he had to place the two options on a scale, Takeshiba Aika's life was certainly more valuable than one of his secrets that might uncover his identity.
In the worst possible scenario, he would be forced to use another long distance Escape Talisman and run from this place once again.
"Don't worry Master I will take care of her!"
As he was thinking about this situation though, he heard a tiny voice on his head. It was Ice, since she had been mingling with the surroundings and erasing her presence as much as possible he had forgotten about her.
A true assassin in the making, she was able to erase her presence even in such a type of battle and take care of everyone from the dark.
The people on the sidelines weren't any less surprised and startled, as they saw Ice suddenly appear out of nowhere and kill the two experts that were aiming at Takeshiba Aika's plan.