I've Been Kicked Out of an S-Rank Guild. But Only I Can Communicate With Dragons. Before I Knew It, I Became the Greatest Dragon Knight

Story:

A super-class dragoon group-Cyril, a boy who was banished from the S-class guild "Lindworm" for some reason. What he had hidden was … the ability to "talk" with the dragons, which was unconventional! Cyril who met unique dragons and launched his own guild. Perhaps because of its extraordinary qualities, the level of the guild soars at the fastest rate in history! Cyril, whose arm was recognized, will make a name for himself as a non-standard dragon knight.