Hinata Sakaguchi

Hinata Sakaguchi (坂口日向) is the leader of the Western Holy Church's Ten Great Saints as well as a Japanese otherworlder. She is second only to the Holy Emperor in authority within the Church.

Appearance
Hinata has short black hair and violet eyes. She often sweeps her bangs over her right eye while tucking the left side behind her ear. Her eyes are described as cold and calculating, as though they are always looking for the solution to some kind of mathematical proof. In terms of appearances, Rimuru described her as "stunningly beautiful."

She usually wears the Holy Knights armor, which is an armor with a white coat draped over it, as well as a monocle. She carries a powerful Legend grade rapier known as the Moonlight Rapier on her hip, gifted to her by Luminous personally.

Personality
Hinata is a cold pragmatist who doesn't shy away from cooperating with anyone as long as it benefits mankind as a whole, even cooperating willingly with Demon Lords even though the Western Holy Church believes in killing all monsters. She is willing to give anyone who asks her advice, but if that advice is ignored then she won't bother repeating herself. She is also extremely stubborn and refuses to compromise with others unless ordered to by Luminous.

Within the Church, she is an extremely harsh but powerful and efficient leader, who singlehandedly built up the Church's Ten Great Saints to the equivalent of the Ten Demon Lords, as well as reforming the Crusaders into a much more efficient and streamlined version of itself within two years of her rise to power within it.

Hinata holds Shizue in high regards, due to her being the one who trained her and showed her what genuine kindness was for the first time. After learning of her death, Hinata set out to kill Rimuru because of his involvement in it, even going so far as to tell him that she would destroy Rimuru City personally.

Despite being headstrong and stubborn, she is willing to admit and make amends for her own fault once she realizes it. In Light Novel Volume 7, she realized her mistake upon seeing how friendly the Jura Tempest Federation is to humans whilst traveling to Rimuru City and thus makes up her mind to apologize and negotiate with Rimuru.

Background
Hinata's father was a gambling addict. Eventually, her father racked up a massive debt from gambling on horse races when Hinata was a child, which made Hinata decide to murder him for life insurance. Hinata's mother suffered an emotional breakdown upon witnessing this murder by her daughter's hand, causing Hinata to plan to kill her as well and thus orphan herself. Just before that could happen, she was whisked away by a "strong gale" to the Otherworld when she was just 15 years old. Upon arrival, she was attacked by three bandits. She ended up gaining two Unique Skills and managed to kill the three bandits.

Not long after her arrival in the new world, Shizue Izawa took her in as a disciple. Hinata claims that Shizue was the only person who had been kind to her during her early years in the new world. Within a month, Hinata had surpassed Shizue in strength after copying multiple of her skills using Usurper. Fearing her own attachment, Hinata went on her own way and eventually became the most powerful knight in the Holy Empire Ruberios, as well as the Leader of the "Ten Great Saints".

At one point she discovered that the Western Holy Church was under the control of vampires and was conspiring with Demon Lord Valentine (which was actually Roy). She defeated both Roy and Louis, suffering fatal injuries during the process. However, she was then confronted by the real Demon Lord, "Ruler of Night" Luminous Valentine herself, who promptly revived both her fallen subordinates and Hinata herself.

After some negotiations, Hinata passed the trial of Seven Luminaries and earned the rights to challenge Luminous, but was promptly defeated. Hinata then agreed to become Luminous' subordinate as she deemed the Demon Lord's governing methods to be acceptable in the long run. Nonetheless she keeps honing her abilities in case she ever needs to fight the Vampire Princess again.

Etymology

 * The name Hinata means "sunny place" (日向).
 * Hinata's surname Sakaguchi means "slope, hill" (坂) (saka) and "mouth, entrance" (口) (kuchi/guchi).

Trivia

 * Hinata is one of the characters that had changed the most between the web novel version and light novel canon. For example, Hinata willingly cooperated with Luminous even before Rimuru's reincarnation and she also didn't get mind controlled in the canon version.
 * Despite being in the first season's first opening “Nameless story”, Hinata doesn’t appear in the first season. She’s mentioned by Shizu in Inherited Will, but she makes her first appearance/cameo near the end of the Saved Souls.
 * She is actually myopic, but it doesn't hinder her in any way since she could always use Magic Sense to compensate for it.