In the same moment that Senna had withdrawn her arrows from her quiver, Zhan had begun to move. It was obvious enough from Senna's actions that these humans had no intention of accepting his generosity, so he would strike them down without mercy. Compared to the movement of the previous slimes as they crawled along the ground, Zhan was a fierce god. By the time Senna's first arrow had been released, the Metal Slime Prince had already closed the distance between the parties to just over ten meters. 

Six meters. Senna's arrow struck Zhan as she drew back her second arrow. The steel-tipped arrow that had effortlessly punched a hole in slime cores and Goblins alike struck the midsection of Zhan's humanoid form-

-And broke.

A meager dent formed in Zhan's body at the sight of impact, only to smooth itself over as a result of his constitution as a slime. The arrow, unable to pierce into his body even with the strength behind it, found itself break apart at the moment of impact, as the very force it was shot with rebounded against its weak frame. All the while, Zhan continued to move. 

Two meters. Senna, having readied herself by now, loosed the second arrow quicker than she had the first, only to be met with the same result. 

One meter. Zhan's arms whipped outwards, reshaping themselves from humanoid arms to metallic tendrils that tapered down to a point. 

Zero meters. The arms of the Metal Slime Prince moved like whips as they were snapped forward, each one aimed to pierce one of the two adventurers in the chest.