"... Very well," Serta nodded in affirmation, looking back to his cup and taking another sip of it.
Mave's spiel on the OVER-unit held his interest. As far as he knew, his universe didn't have one of those - not yet, at least. If they were his best shot at getting back home, then perhaps he didn't need to worry so much. However, there was still an air of uncertainty surrounding that possibility. Serta felt an obligation to be available to his linemates, and not knowing where he was had the taurloid put his drain on in the first place: he wasn't sure if he would have been able to recharge or re-energize himself!
However, if what the barista said was true, and he was going out of his way to assist him in his time of need... It would be awfully rude and inconvenient to suck his savior's reserves completely dry. As weird as it was that Mave didn't seem to react to it.
And, well, he did made him his first-ever cup of coffee. It was a free, delicious experience to comfort him, at that.
The end of his tail tapped the ground.
Finishing his cup off, he got up to place it in the designated bin before making his way over to Mave. He would turn down his drain down before approaching him. The taurloid still kept it on, but if he were to follow Mave with the drain at full power then the vamploid would've been dragging his feet sooner or later, in Serta's mind.
He walked out the door and looked over to where Mave pointed - a stark-white building stood there that contrasted with the rest of their surroundings. He looked over to Mave, his stressed look softening slightly.
"... If I cannot get back right away... What can be done in the meantime?" He asked quietly.
Despite passing the taurloid on his way to the door, and the exhaustion that followed that he'd only begun to suspect came from said individual, the moment Serta followed after him the blond found that... it wasn't as intense as before. Why...? Perhaps he'd only been imagining it. Perhaps he really was running low on reserves.
As a self appointed guide, it wasn't as if Mave could simply leave. How strange, to make this journey with a living individual and not someone or something that had traveled too far past the other side.
Violet eyes still slid to the machine beside him, hands sliding to rest in his pockets, pose taking on a relaxed posture. "While I doubt our Guardian Unit will leave you waiting for too long," it simply wasn't like an OVER to leave loose ends hanging, "I... suppose you could stay with me."
He inclined his chin upward with a tilt of his head, back towards the building they'd exited from-- more so the floor that was above the coffee shop, the balcony overlooking the sidewalk with a little bed of flowers handing from its sill. "I have a spare bedroom, and a recharging station I rarely use nowadays."