#the fact that he's the middle ground between koga & rei

[wildwoof]

Also how Adonis said the reason UNDEAD never tried anything new from their original style was due to how adamant Koga was about sticking to their immoral style, most likely barks & yells about it. It deals with Koga's clear desire to keep him comfortable in a space he knows. But, this also puts into effect how clearly Rei took Koga's feelings into account. As the leader, he could have still gone through with any of the prior suggestions for additions or changes, but when Koga spoke up about being against it, they wouldn't do it. That'd be the end of it. Sure, Koga might've still fought against it, as it'd not be his safe space, but after all, the leader's word goes & more than likely Koga was the only one opposed to anything. Yet, Rei took Koga into consideration into the decision not to do it.

Thus, it's huge progress for Koga to finally be willing to learn & adapt different styles recently with Adonis' to-the-point words of wisdom getting through Koga's thick skull. To adapt UNDEAD to not get left behind & allow their growth as a unit to blossom forward. Adonis being more talkative now to keep Koga settled is a big help since at the moment Rei can't talk to him.