Some time after the completion of the Impossible Mission, Klaus returns to the mansion from vacation, where he thwarts more attempts by Lamplight to ambush him. In addition, Grete begins serving tea to him privately in his room and openly flirts with him, leading him to wonder why she has such an interest in him. Klaus is given a second Impossible Mission to hunt down the infamous assassin Corpse, who has killed many politicians and Republic spies. Klaus is also assigned a mission to apprehend an enemy spy, and he takes Lily with him. Though he completes the mission, he is stabbed with a poison needle by Lily, who claims he instructed her to earlier. Klaus then realizes that Grete disguised herself as him and gave false orders to Lily so he wouldn't pick up any hostile intent. While he's impressed with Grete's plan, he reveals he had already caught on to her trap. However, Grete and Lamplight insist on helping him on his missions, which he so far has been handling solo which has been affecting his health. That night, when Grete serves tea to him again, Klaus correctly deduces that Grete has romantic feelings for him. Still impressed with how Grete was able to come up with such an elaborate plan to trap him in such a short amount of time, Klaus decides to have her and Lamplight's strongest members accompany him on the hunt for Corpse.