Faustein had watched as Sojiro recognized him by name and then gone on to suggest a collaboration between them at some future date after which the man came up for a handshake, so Faustein nodded, taking his hand and shaking it before letting go while remarking with a smirk on his thin, firm lips
"Oho, well this is most intriguing indeed, and likewise, a great many tales have been told to me by my parents about you and your work and of course, this has been corroborated by my own personal research into your achievements as well. Indeed, we mostly certainly will engage in some discourse regarding the possibility of collaboration...perhaps even in medicosurgical research and development."
Then, he had fallen silent and observed Ami and Sojiro interact wherein, eventually the topic of a spar was brought up. In response, he heard Ami suggest that they team up against Sojiro, so he nodded
"Of course, this is the most logical option here, so we have ourselves an accord. Let us proceed then, into the fray, and may the Shining Queen of Heaven watch over us as we put forth our efforts on this momentous day."
He remarked with a brief smirk before stepping into a basic combat position alongside Ami, also about 5 m away from Sojiro. Before the spar was joined, however, he posed a query
"So then, will this be a spar that is inclusive of jutsu and equipment? Or perhaps simply a straightforward Taijutsu contest without these aforementioned elements?"