4:50 Here the captain said: "Has everyone gathered? Yes. We're going to attack the enemy convoy. The enemy has two escort destroyers and two corvette-like ships. After the attack, of course we have to be prepared for the enemy's depth charge attack. At that time, we will immediately dive deep. Even if our submarine is damaged by depth charges, we must always act quickly and never panic. Be very careful, because one person's carelessness determines the fate of all. Tell your subordinates. That's all." He seems very calm. One Japanese veteran said that since he frequently witnessed bullying on a large warship, he felt more comfortable on a small submarine because everyone ate in the same place regardless of rank, and there was no bullying. He was in i-175 as a medic.