It's the same old club room, but the vibe between Io and Ryuu has changed. Have they had a fight? But then again, the others reason, they didn't get along very well back when they first joined the club... Then, when a fight breaks out, the cold war between the two second-years ends up getting the Battle Lovers in big trouble!
Let's illuminate the mysteries 
of the universe...
Lass uns die Mysterien
des Universums erleuchten!
¡Iluminemos los misterios del universo
¡Iluminemos los misterios del universo
Nous révélerons
les secrets de l’univers
Facciamo luce sui misteri dell'universo...
Vamos iluminar os mistérios do universo...