Kirigaya Suguha

, known as in «ALfheim Online» (ALO), as well as «Project Alicization», where she had temporarily used the Terraria (テラリア, Teraria) account, is the deuteragonist of the Fairy Dance Arc, one of the main characters of the Girls Ops spinoff, and a reoccurring character throughout the Sword Art Online series.

Background
Suguha is the cousin and adoptive sister of Kirigaya Kazuto, but was raised along with him as his sister. In order to protect Kazuto from the wrath of their grandfather when he decided to quit kendo, Suguha became an accomplished kendo practitioner in his stead. While Kazuto was trapped in Sword Art Online, she became interested in seeing the virtual world that he loved, thus she began playing a Virtual Reality Massively Multiplayer Online Role-Playing Game (VRMMORPG) called ALfheim Online as a Sylph warrior, after consulting Nagata Shinichi (Recon), the person with the most experience on games in her class. Her obsession with flight in the game has earned her the nickname «Speedaholic» (スピードホリック, Supīdohorikku) from Recon.

Kirigaya Suguha was raised with Kazuto as siblings, since her parents took Kazuto in after his parents died in a traffic accident. Kazuto is Suguha's maternal first cousin, as his mother and Suguha's were sisters. They were taught kendo by their grandfather, who was a former policeman and a kendo champion. Kazuto gave up after two years and embraced the world of technology, leaving her behind. Kazuto found out he was not her real brother around this time and the distance between them became further and further apart, until they were practically strangers before the SAO Incident. She continued with kendo and became a national quarter-finalist.

Suguha originally disliked VRMMO games for it hid peoples' nature and reality, as it did with Kazuto. She took up ALO in order to understand Kazuto better when he was trapped in SAO. She won the Sylph tournament, earning the title as the strongest Sylph before the events of the Fairy Dance Arc. She learned how to play ALO from her classmate, Nagata Shinichi. Suguha has become very good at ALO, because of the many years she has practiced kendo and the skills learned there were very effective for fights in ALO.

Appearance
Suguha has short black hair and dark grey eyes, almost blackish. Her breasts are very large, compared to other members of the female cast, although she has grown a lot recently. She also has a cute childish look and is often seen with an embarrassed expression, especially when around her cousin.

Due to her kendo training, Suguha has strong and defined muscles that show up even when she makes small movements. Kazuto has described her as monstrously muscular and although he claims to be exaggerating, he does state that she is heavier than she looks.

Equipment

 * Verdurous Anima - Terraria's Default Katana. Used in Project Alicization.

Skills (ALO)

 * Voluntary Flight
 * Magic
 * Strength Buff Magic
 * Wind Needle Magic
 * Healing Magic
 * Vaccuum Blade Magic
 * Shield Magic
 * Concealment Magic

Trivia

 * Leafa appears as an assist character in Dengeki Bunko: Fighting Climax
 * Leafa appears as a support character in Dengeki Bunko: Crossing Void
 * She is voiced by Ayana Taketatsu in the anime adaptation of Sword Art Online.
 * She shares as voice actor with: Manticore (Boogiepop and Others (2019) and Kirino Kousaka (Oreimo).