Sasuke would likely be initially suspicious of the Death Korps of Krieg. He's always been cautious around new and potentially powerful forces. However, he would also be intrigued by their military might and might seek to learn from them to further his own power.
Sakura would probably be a bit horrified at first by the Death Korps' rather grim and unyielding appearance and tactics. But as she got to know them, she would see their sense of duty and loyalty and come to respect them. She might even try to use her medical skills to help the injured among them if there were battles.
Kakashi would be observant. He would study the Death Korps of Krieg's strategies and formations. He might also be interested in how their strict discipline compares to the ninja code in the Naruto world. He would likely be the one to try and establish some sort of communication and cooperation between the two groups if it was beneficial for the overall situation.
Chapter 418, "Individual Rankings", is the clearest early answer because it turns Deserted Island's situation into a concrete plot event.
Chapter 41, "Actually Still the Museum Director?!", is the clearest early answer because it turns Unfortunately's situation into a concrete plot event. The chapter turns that into something concrete by moving from The live streaming room suddenly boiled over again.
Chapter 202, "Jiang Li Official Announcement?!", is the clearest early answer because it turns Lan's situation into a concrete plot event. Early on, Jiang Li couldn't believe it, "Just to take a picture?" "Yes, just to....
Chapter 187, "I Really Need an Apology", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on During the competition, she passed by him numerous times, unfazed by...
Chapter 147, "Jiang Li, We Are Going to Meet Again", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event.
Chapter 83, "Can Actually Carve Flowers?!", is the clearest early answer because it turns Uncle Zhao's situation into a concrete plot event. It opens with When they received the task, the three of them were already...
Chapter 171, "Jiang Yan: There's a ghost!!!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from The afternoon rain stopped and started again, making the air even...
Chapter 340, "Seclusion, Growing Yu Generation, Family Banquet, Rapid Development", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. It opens with As the night of the tenth day of September descended, Lu Yang set out... and closes on Though Xu Ning and Lu Yang are not extraordinarily strong, they have.... The key payoff is that the chapter closes with After all, it is the Lord's residence, the most crucial and mysterious place in Xia City.
Chapter 170, "This Family Will Fall Apart Without Jiang Li", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event. Early on, Watching the two who had long remained silent, the PD shifted his....
Chapter 69, "Received Two Advertisements on the First Day", is the clearest early answer because it turns Princess Wen's situation into a concrete plot event. Early on, Since the phones issued by the program team couldn't log into Weibo,....