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…”
But if I don't do this, I'll never 
get closer to you, big sister.
Pero si no hago esto no podré 
llevarme bien contigo.
¡Es que si no lo hago, nunca nos llevaremos bien, hermana!
Mas se eu não fizer isso, eu nunca
 vou poder me dar bem com você.