Just so you know, this isn't really Saber and she's not a servant. She's Master Artoria, a human in Capsule Servant. In that game, both Saber and Salter appears as servant. So maybe this isn't selfcest?

The mind-reading girl looks like the combination of Miku (twin-tail) and Neru (tsundere, always use mobile phone)
( ･`ω･´)