[/no matter how small, most people don't know Diablo or if Rimuru succeeds. Even in the wn, there is tension when his subs approach him after the fight. I mean Rimuru also changes due to Raphael during the moment. It's good that there is also this fight in the manga; it illustrates the determination of his subs and builds more tension. There is also a lot of world building.]
@Owyn He was desperate. His 'comrades' have fallen, and naturally, he wanted to survive. He knew his comrades' skills and thought he could get away with her skill "survivor."