Félix begins paying more attention to Marinette due to her constant involvement with Akumas which begins to lead into some strange feelings that he doesn't quite seem to understand. He begins to explore them slowly, not as himself, but as Chat Noir.

As of late, Adrien has been taking particular notice on how close Marinette and his cousin, Félix, have been. Once a pair that gave each other menacing glares, venomous words and quarreled over every-little-thing, now are joined at the hip and do nearly everything together with loving smiles and little glances filled with such affection for one another, like close best friends, or

Félix was asked to accompany Adrien to one of his photoshoots, for what reason he does not know, but it seems like his Adrien has a plan in store for his older brother.

There exist two beings, cousins in fact but twins in every physical aspect yet exact opposites in terms of personality: one could bring a chill down your spine with his icy glare while the other could warm your heart with a cheerful stare. Maybe they were twins in a way, they weren't constructed by any normal means.