*author's note*
There will be little to no Marinette in this chapter, because I need to develop the plot further.  But don't worry shippers! Love plots coming soon!
P.S. Hawkmoth is Gabriel Agreste in this fanfic.
* with Adrien*
Adrien was walking home from school today, to mark the end of a tiresome school year. He was happy and whistling all the way. One of the reasons was, he doesn't have photoshoots this weekend, and second, he is going to spend time with his awesome friends and classmates ( All except Max and Chloe, but honestly like anyone will miss her). He was wondering why his father did this, and he had a pretty good theory why. Soon he came home, to his big empty mansion, only to find his father in the hallway.
"Ah Adrien there you are." His father stated  coldly.
" Father, I apologize If I was late home, it was a beautiful day and I wanted to-"
"You need not worry with that Adrien. I have cleared most of your schedule for the summer, but you still have photoshoots and Chinese lessons in August. That is all for now, if you have any questions, ask now, I do not wish to be disturbed later." His father said with a formal voice.
" Well father, there is one. Why did you organize a trip for my entire class?"
" Ah yes, I did it to promote the Agreste fashion-line to a younger generation, and to rise your reputation as a sociable and generous teen." He replied. "Is that all?"
"Yes father." Adrien sadly replied.
"Good, by the way, I checked out those drawings you gave me, I believe Marinette Dupain-Cheng was the designer. She is a great  designer, but it has come to my attention that she might be afraid of you. Fix that."
Adrien looked at him, at first confused, but soon happy:
"Thank you father. I will."
"Good." Gabriel turned his back to him, and Adrien went upstairs to his room, with a smile on his face. Unknowingly to Adrien, his father was dying inside.

* later that day*
After Gabriel finished his work, he went to his wife's picture, took a chair, and sat down in front of it. After an hour or so of thinking he spoke:
" I failed you, didn't I?"he paused.
"I was so focused on searching for a way to find you, I negclected our son."
flashback
Hawkmoth was in his chamber when he suddenly detransformed.
"What's the meaning of this, Nuru?! We have found a perfect akuma hoast!" Gabriel yelled.
"Sir it's very important." Nuru said with a shaky voice.
"Fine, continue." Gabriel turned to his stoic self again.
"Spotty Bane is back sir. And this time I know which kwami is the most likely to be infected." Nuru spoke.
"Which one? Is it you?" Gabriel spoke, a little bit curious.
"It's... the black cat kwami, sir." Gabriel's eyes widened as he screamed:
"Noooooo!!!!"
present day
"Not only have I neglected him, I'm about to lose him. I targeted people who want to hurt Ladybug, not Chat Noir. But, no matter how hard I try, it seems I will lose him too." Gabriel said as his voice became shaky.
" So, I will give him the best six months of his life, especially since he is turning 18 soon. He deserves it." A few tears started streaming down his face.
"Remember, when he was just a little kid, he would run around the house, with his Superman figure, and scream:"Here comes Superman! Evil beware, haha!" And I said to him:" Son heroes like those don't exist." But then, he looked at me with your green eyes, and said:"But papa,  you and mom are our heroes!" And he pointed at the town. What would he say if he knew what I was doing the entire time." He said, crying harder and harder.
" I have lost him, I have lost him, I have lost the most beautiful child in the world, the kindest soul I know, the best Chat Noir ever. Now I will be all alone, and I couldn't get you back, and I can't save him. I'm no hero. I'm just a disappointment." He got on his knees full-on crying, his tears falling on the floor.
" Sir, dinner is ready."  Natalie said through a speaker.
"I'm coming." He said, suddenly being cold as before.

*with Adrien*
I ran back into my room, super happy. I knew my dad did it to promote his company, but he also gave my friends a great vacation, and gave my friend a chance at her dream. I was so happy I jumped on my bed, and noticed a little package on it. More suprises from my father? Ok... But when I opened the box an all familiar smell filled the air. Camembert. Ugh,Plagg. There was a little note inside, saying:
Dear Kid,
I know you are not eating right now, so other kwamis made me send you this. YOU BETTER NOT EXPECT ANYTHING LIKE THIS EVER AGAIN! Anyway, you better make progress with Marinette, and don't be depressed, or I swear, I will come back early and beat you up!
With love, Plagg.
"Pft, Plagg I don't like cheese." Adrien snickered.
"But, why does everyone want me to make progress with Marinette? Soon, they will be expecting a proposal or something." Adrien muttered. (Yes, Adrien, we probably will)
" Oh well, they are right, I need to be in her comfort zone, she is my friend after all."
Adrien lied down on his bed and started thinking about Ladybug, and Plagg, and Marinette. Then he compared Marinette and Ladybug.  Hey, don't they look a little bit similar? Nah, just my silly imagination.
He thought. His thoughts were interrupted when Natalie called him for dinner. He got down the stairs, whistling some weird tune.
*at the dinner*
Adrien and Gabriel sat on the opposite sides of the table, eating their dinner. Gabriel lifted his head up, and saw Adrien grinning. He smiled a little, which only made Adrien grinn wider. This is the first time in years he has seen Adrien smiling like that. Dinner was soon finished, and Gabriel walked out first. But, Gabriel didn't even have the chance to turn around, when a pair of arms hugged him from behind.
"Thank you father. For giving my friends a holiday, for giving my friend a chance. For giving me a vacation I always wanted. Thank you for all of that. Good night father."
Adrien was soon running up the stairs to his room, a smile spread across his face. Gabriel whispered:
"I was wrong. He is even better then I imagined."