Nina comprehended what had happened.
Eris had stepped in at roughly the same time that Nina had. Then, in the face of Nina who was using an upper-guard, Eris dropped low to the ground and simultaneously let loose in a horizontal slash her own 『Longsword of Light』.
However, she couldn't understand. In that case, it should have been her attack that connected first. Nina was the one who moved first and her sword swings were just a little faster than Eris. Furthermore, an attack from an upper-guard should have been even faster. Since that was the case, even if Eris lowered her head a little, it wouldn't have been strange for Nina's own sword to reach first. Even though that was the case, the result was that it wasn't even a simultaneous attack. For some reason she collapsed, whilst Eris was standing.
"You don't need more power than what's necessary to knock someone down.