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!
I explained it to them, kindly and concisely!
Ich hatte es euch höflich …
¡Se los expliqué
de forma breve y concisa!
¡Lo expliqué de forma breve y concisa!
Il le leur a soigneusement expliqué.
Gliel'ho spiegato in modo gentile e conciso!
Expliquei para eles de 
 forma gentil e concisa!