She’s having flashbacks of the Yukari-mobile.

Sister Leveling.

Could have always suggest Puni Puni Poemy

Aura brought a knife to a gun fight.

I hate linking to a Reddit post but this was the only place I could find the small clip

I like that their relationship isn’t this “will they, won’t they, afraid to share their feelings” type thing. They fall into it and is accents the story not overshadows it