Es kommt Licht in Sinons Vergangenheit und Kirito macht sich bereit für seinen ersten Besuch in GGO.
While walking home, Asada Shino, Sinon's real-life counterpart, is bullied by three schoolmates, but they are warded away by her friend Kyōji Shinkawa, who introduced her to GGO in the first place, as a form of immersion therapy for her fear of guns. After talking about their personal lives, Shino leaves for home. There, she tries holding a gun replica, but this induces a flashback to when she was eleven years old; while she was at a postal office with her mother, a man carrying a gun tried to rob the office, shooting an employee and threatening to kill other people. When the robber aimed his gun at her mother, Shino attacked him, wrestled the gun out of his hand, and shot him repeatedly, killing him. The flashback triggers a panic attack from Shino. Meanwhile, Kirito informs Asuna that he will be converting his ALO avatar to GGO, which surprises her, but she approves. As Kazuto, he goes to the hospital to log into GGO, while his real-life body will be watched by Aki Natsuki, a nurse who oversaw his condition while he was trapped in SAO. Shino logs into GGO as well. Meanwhile, an unknown figure overhears an online voice-chat discussing Death Gun before looking at a photo of Sinon, grinning hungrily.
Asada Shino, la joueuse derrière le personnage de Sinon, est prise comme tête de turc d'une bande de délinquantes, et leur chef, Endô, lui réclame de l'argent. Cette dernière refuse, mais Endô faisant mine avec ses doigts de braquer un pistolet sur elle, se met à blêmir et à trembler. Pendant ce temps, Kazuto qui a décidé de convertir son personnage, se rend à l'hôpital que Kikuoka a préparé pour lui afin de se connecter à GGO en toute sécurité...
Viene svelato il passato di Sinon e del perché abbia fobia delle armi da fuoco nella vita reale. Intanto Kirito si prepara per la prima visita a GGO.
シノンのプレイヤーは、女子高生の朝田詩乃だった。彼女は下校途中で不良少女たちに路地裏に連れ込まれる。詩乃は不良少女のリーダーである遠藤から金をよこせと迫られるが、毅然と拒否。すると遠藤は手を銃の形にして詩乃に突きつける。それを見た詩乃は突然蒼白になって震え出してしまう。詩乃は幼い頃のある事件が理由で、銃に対してトラウマを抱いていたのだ。その事件とは……?
시노가 총에 관한 트라우마를 가지고 있다는 걸 알고, 친구들은 그 사실을 이용해 시노를 편리하게 써먹기 시작한다. 그리고 그날도 어김없이 시노에게 돈을 요구하고 있었는데.
Na vida real, Sinon é uma aluna do ensino médio chamada Shino Asada. Mas circunstâncias de seu passado fazem com que ela seja muito sensível à armas, o que gera em seus conhecidos diversos tipos de reação.
Sinon se encuentra en problemas y ocurre un evento que le hace revivir recuerdos de un pasado oscuro y doloroso. Ella cree tener la respuesta para ser más fuerte justo al alcance de sus manos.
以"詩音"這個角色在玩擬真遊戲的,是一個名為朝田詩乃的女高中生。她獨自一人住在公寓裡,每天通勤去學校上課。詩乃只要看到會讓她聯想到槍的東西,就會陷入恐慌,而其原因在於她小時候的某一段記憶。