He's a robot, and he wants to kill his master.
He thinks his master, Jiang Wang, is a wicked bastard who treats him like a sex doll.
He doesn't know that when Jiang Wang saw the words "I'm going to kill him!" in his diary, he raised an eyebrow, found it intriguing, and felt a rush of excitement and pleasure.
Later, after trying to kill Jiang Wang over and over, he yells at him, "Pervert!"
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Because Jiang Wang is a robot fanatic, and Number 77777 turns out not to be a mere ornament. Number 77777 can only be his. He can pretend he made him, pretend that every place the robot licks was made by him.
**
A seemingly gentle, tsundere robot who gets all riled up X a robot fanatic who seems arrogant and unruly
Theme: Stay positive and keep moving forward