/jp/ - Otaku Culture

Yuyuko is actually the smartest character in the series, from the direction of wisdom and intuition.
She masks it with practiced dissembling, seemingly operating on random whim and making nonsense comments while understanding complex situations at a glance.
She solved the incidents in both her fighting game appearances before any of the other characters investigating (and in Tenshi's case forced her to keep going because Yuyuko was having so much fun making snow out of soulstuff), brought fear to the elder god Omoikane (while having a fun lunar vacation), and didn't even bother getting off her porch when she sensed the revival of an emperor.
Despite not having the same head for number crunching as her demon sorceress BFF, she easily understands every plot from small hints and obscure references.

Her "ability to invoke death" is just the ability to control souls, full stop. She kills you by pulling your soul out. Reality was her plaything during the soul fog of Tenshi's incident, and the Hourai really bother her with their invulnerable golden souls.

She's also one of the best dancers in Gensokyo, as most of her combat moves involve spins, dashes, and backflips with her fans.

She sees ghosts as they were, so all the souls hanging around the Netherworld are like her personal harem of dead poet-samurai. The big soul midboss during her Ten Desires stage is actually a white knight defending his lady.