You can say none of them wanted to back down. Because of this, they continuously attack each other. But you have to say that all this time that person who challenges Allen just thinks that he is not strong enough for Allen to use the Spiritual Tiger technique.
But that does not mean he will back down as you can see both of them having an intense fight. Fortunately, previously Allen increased his strength and spiritual energy and because of this until now he did not get exhausted. But you can say that he already uses 60% of his spiritual energy to fight that person.
'Increasing Spiritual energy flows in my sword, really consuming my spiritual energy faster than before. I need to finish this fight as quickly as I can or I would be the one who loses this fight. Even if I wanted to stay low-key, that does not mean I will lose.'
