Nagi: the king of video games. Chiharu: the knight of light novels.  Kayura: the soldier of cosplay. The three powerful individuals meet by chance in the holy land of Akihabara.  Tsugumi becomes a bystander, not being able to predict the result of the battle that she was the cause of.  Then Hayate mutters, “I’m sorry…”
Now I can get closer to my sister...
Siempre que pueda llevarme 
bien con mi hermana...
Pero si así me voy a llevar con mi hermana, no importa.
Se eu conseguir me 
dar bem com a mana…