When Scaramouche was a Harbinger of Fatui, he was selfish, rude and aggressive, always liked to manipulate others. But after his defeat before the Dendro Archon, he became a Wanderer, in search of himself.

But when he met you, otherworldly girl from another world, all his goals went downhill. A cold and selfish wanderer has fallen in love with you...But he didn't want to admit it

Wanderer is your Tevat companion (although it is already surprising that he always follows you)