In addition, She is the leader of the Yomigaeri and also one of Rimuru's strongest fighters. When she got resurrected and evolved into a Wicked Oni during Rimuru's Harvest Festival, she reached the strength of a Disaster-Class.
As an Ogre, Shion had an overall unsightly appearance, with a really thick black horn protruding from the center of her forehead, the base of which had skin folded in a way where she always looked like she was angry.
She has large purple eyes, and light purple hair tied into a ponytail. She has a noticeably curvaceous figure, with massive breasts noted by Rimuru.
In the anime, her skin had a purple tint matching her purple color scheme, as well as a sharp tooth peeking out from the corner of her mouth.
She wore a brown robe with thick woolen borders and a collar that reveals much of her cleavage. She also bore a necklace with a green stone in the center, between two white stones that looked like teeth, which in turn were also between two other green stones.
Similar to her brethren's evolution, Shion's horn became narrower and lost her vicious appearance after becoming a Kijin. She became a beautiful woman, with a slender and voluptuous body, and a height of 170 centimeters. Her hair grew much longer, and her skin also lost the purple tint.
She received a set of Western formal attire i.e. A yellow-green shirt, covered by purple suit and purple pants, that were custom made by Shuna and co's crafting skills. She leaves the suit unbuttoned, allowing a generous portion of her cleavage to jiggle out.
Shion is very clumsy and rather dense. But above all else she is passionate. She does not understand the beauty of gentle refinement and natural simplicity. She does everything with all her strength. When cleaning, "Everything must be erased" she concluded and attempted to destroy the very building.
However, after her resurrection, while she still often intends to make impulsive and unwise decisions and tries to solve things with violence most of the time, there are times when an uncharacteristic wisdom of hers shines through when she deals with someone who is compatible with her personality, like when she dealt with Dagrule's three sons invading Tempest to challenge Rimuru, where she put them down all by herself and turned them into her students, impressing even Rimuru.
She first joined Rimuru following the Ogre Village's destruction and was named along with the others after Benimaru accepted Rimuru's offer.
Shion died protecting Shuna from the invading Farmus Otherworlders. The magic energy concentration dropped due to the barrier placed around Tempest, so her strength had fallen leaving her defenseless. In addition, Shion was always bad with barriers. However, she was later revived by Wisdom King Raphael causing her to evolve into a Wicked Oni as well.
In the middle of the evolution she received during the Rimuru's gift granting ceremony when she needed to express her dearest wishes, she wished for her cooking to be delicious, thus obtaining the Unique Skill Cook.