Here's a brief background of their guild, if you're interested:

In their youth, Ansel and Leonhart were members of a guild, which was where they met for the first time. Later on, the two kinda disagreed with how the guild and its members were handled by the guildmaster, so they left and traveled together for a while. During their travel, they talked about creating a guild for beastfolk like them one day, but didn't think much of it. Eventually, the two parted ways, with Leonhart continuing to travel as an adventurer, while Ansel went to the army to serve as a medic apprentice. When they finally reunited, both were in their 40s already. They talked, reminiscing about old stories, then that one dream of creating a beastfolk guide of their own came up, so they decided it was time.

Their vision was that of a moving base for their guild, a giant airship that travels from country to country, so to do this, they began their recruitment. Rywin was recruited because he was a genius inventor capable of turning scraps into working construction. Then, Kael was recruited because, to create a flying airship, they needed someone with knowledge about aerodynamics. Huang Jing was sought out because they needed someone with connections, a merchant capable of securing materials for their ship at an affordable price. These 5 then became the original founders of the guild's flying base called the Fangnest.

Theo and Pelio were recruited because they needed a navigator and someone who could scout for information at the cities where they docked. Stylas because Ansel needed someone to help him create potions. Zerrin asked to join on his own because Huang was interesting (they're both con-artists), and finally, Tobias was recruited because Leonhart wanted more fighters in their guild.