Adrinette, basically. Marinette is a fashion designer for Jagged Stone and Adrien works at a bakery with Plagg, who is a human here. Also Tikki. Alya and Tikki are her best friends. Adrien thinks of Marinette as a friend, and Marinette thinks of Adrien as a friend. Will things change? Who knows? For me to know and for me to find out. ;)
There isn't a death, but an injury.