S-kyuu Guild wo Tsuihousareta kedo, Jitsu wa Ore dake Dragon no Kotoba ga Wakaru no de, Kidzuita Toki ni wa Ryuu Kishi no Chouten wo Kiwametemashita.…

[Simpleton]

So, was that dragon knight a future guild companion for our MC?

I liked the explanation for why he didn't invite her right away (and why she might not become one). "Her dragon was a bit creepy."