It wouldn't be exaggerating to say that Nacrelle, also known as Kooperina when she first presented herself, was Andlfyer's bona fide sidekick. When a certain terrorist group called for the bold Yoshi's life and he discovered several people... endangered, she showed up. When Andlfyer swore to take down the terrorists, she decided to help... because she was bored? Yeah, Nacrelle seems a lot stronger than she lets on.

Yet, the near emotionless and indifferent Koopatrol stuck by his side... though most of her rough history with both sides of the Mushroom Kingdom war was revealed during it- her feud with Peach, her history with a loosely Bowser-loyal group named the Turtle-sassins (hence the emblem on her helmet,) and her strange involvement in stopping a huge banzai bill attack two years before Andlfyer's first adventure. Never did either person betray the other. Yeah, Nacrelle may be edgy, but she stays true to the end.

Especially after that unfortunate murder happened. It was the first time she shed a tear in years.

Now, she is regarded as one of the many Kingdom heroes alongside Andlfyer after the terrorists defeat, and remains an ocassional ally today! Though, she will NOT let go of the empty, emo part of her personality.

Yes there's Andlfyer lore, I may or may not post it here in the future