The one who refused those words, was the Sword King of the Beast Race.
She had seen Eris's struggle.
She had seen Eris's effort.
That's why she didn't say or do anything and just watched.
For Eris's grandfather who had died...
She believed it was her duty, and payment for the debt of honor she owed Sauros.
"Are you listening?! I'm telling you to protect the most important person to me!"
"... I won't! If you die, I won't be able to face Master Sauros and Master Philip!