Marinette (as Ladybug) would be devastated. She might isolate herself at first, blaming herself for not being able to prevent it. Alya would be very concerned for Marinette and try to comfort her, but also be in shock at the loss of Chat Noir. Nino would probably be heartbroken as well, since he was friends with Adrian. The other classmates might be sad and confused, and there could be a general sense of gloom over the school.
Perhaps in the fanfiction, Adrian's death could be a result of a self - sacrifice. He might give up his life to save Ladybug or Paris from a great danger. This would lead to a whole new set of challenges for Ladybug as she has to deal with the loss of her partner and also continue to protect the city without him. His death could also be a catalyst for a new hero to emerge, or for Ladybug to gain new powers out of her extreme emotions.
There's no way to tell for sure who Adrian is from just this title. He might be a local figure in a particular community where this 'presentacion' is taking place. Maybe he's someone known for his interesting stories or he could be a new face who has a very personal and secret story to share.
If the prince died, it would be the second chapter of Sword Snow Stride "," Sighing that the sword of the Lingjiang River can break a thousand armor, laughing at the cold blade hanging on Guangling."
Shi Ying died in the 35th episode of Yugu Yao. In this episode, Shi Ying killed Zhi Yuan, and Zhu Yan was in great pain. Shi Ying willfully pierced himself with Zhu Yan's sword, and he died under Zhu Yan's sword. This scene happened at the end of the movie, marking Shi Ying's death.
The fake death plot in the novel happened in chapter 31. In this chapter, the protagonist, Miao Jiuer, returned to the old mansion and pretended to be dead. Miao Jiu 'er pushed aside the fog of time and space. She hid in the damp basement and waited for the disaster to end. Faking her death became the key to her escape from her predicament, and it also strengthened her belief in pursuing the truth of her father's death.