In Greek tradition, Narcissus was so beautiful that he fell in love with his own reflection, which is why we call self-absorbed and self-centred people "narcissists". It's the kind of flower you'd give to a not-so-humble model. However in Chinese tradition, the narcissus is quite different. It means hidden talents and being good at what you do. It's the kind of flower you'd give someone for their new job, or study course, or who wanted a promotion. It also has another meaning...
Plagg stared at the flower.
He stared at it some more.
Finally, he said "I suppose you think this is funny."
His kitten merely threw himself back onto his bed, giggling. Giggling.
Honestly, if the kid wasn't so good at giving him his favourite cheese... Plagg sighed, and retreated to one of his favourite hideouts.
There was another piece of narcissus in there.
"Honestly kid. It's like you actually want me to leave."
At that, Adrien sat bolt upright. "Plagg, no!"
Plagg just grinned at him, and the boy realised he'd been had. And snorted. "I fell for it right back, didn't I?" Adrien said.
"Well, if you insist on filling your room with a flower meant to find and push out evil spirits you deserve what you get. And I deserve cheese." A minute later, he said around a full mouth, "Besi*ghh*. I *mmph* though' you knew be'er." He swallowed. "I'm not evil."
"True. You're really chaotic neutral."
"Say what now?" Plagg didn't always understand his modern-day kitten's references. As the boy rummaged on his bookshelf and pulled out a book labelled "Dungeon Master's Guide", he wondered if he was going to regret hearing the explanation.
Later that night when his kitten was fast asleep, Plagg carefully pulled off one narcissus flower and hid it in his mouth. He phased through the wall into the next room, staying low, and then into the hallway when the coast seemed clear. Up, along, and through again to a place he'd found once by accident. He pulled out the flower and wiped it off a little. Then he tucked it in next to a sleeping purple kwami, who murmured and snuggled up to it without waking. "Here, old friend", Plagg said sadly. "You need this more than I do."