Sword Art Online: Project Alicization, Vol. 4 (manga)

'This might be a game, but it's not something you play' - Akihiko Kayaba, Sword Art Online programmer After Ronie and Tiese try to save their friend from the clutches of nobles Humbert and Raios, the two find themselves at the corrupt knights' mercy instead! Eugeo rushes to their aid, but his foes are protected by the unbreakable Taboo Index, no matter how twisted their actions. Torn between doing what's right and obeying the law of the land, Eugeo's eye begins to ache as he faces an impossible decision...