Crawling Girl may have a strong defense and regeneration, but Crystal Knight has superhuman strength and endurance, making it easier for him to break through Crawling Girl's defense. Additionally, he is an expert at using weapons, which will be quite useful in this battle. Crawling Girl's multiple arms and acid black mucus may intimidate some opponents, but Crystal Knight is not easily scared. Furthermore, he owns Crystalline Armor set, which is very durable and hard to penetrate. His sword and shield can help him create distance and deliver devastating attacks. While Crawling Girl may be smart enough to use her mind infecting technique, she is in the enemy's mind, which gives their willpower the strength to resist it. Overall, Crystal Knight has the upper hand in this battle because of his superior physical prowess and combat experience.