Marceline and Princess Bubblegum

Marceline: Hallo Mensch Süße Prinzessin: Du bist endlich aufgewacht Bist du bereit für ein Experiment?

Marceline:
Marceline makes her debut in the season one episode "Evicted!" in which she forces Finn and Jake to leave their home. However, as the series progresses, Marceline becomes a close friend of the two. Various episodes of backstory have established that she was born to an unnamed human mother (voiced by Rebecca Sugar) and the demon Hunson Abadeer (voiced by Olivia's real-life father Martin Olson). Additionally, when she was a child, the cataclysmic Mushroom War occurred, and soon after, she developed a father-daughter bond with Simon Petrikov (voiced by Tom Kenny), who would one day become the Ice King.
Marceline has been critically acclaimed and is popular among Adventure Time fans. The character was also the focus of the seventh season miniseries Stakes (2015). Early in the show's history, Ward himself stated that Marceline was his favorite character because he did not know everything about her story and background, which he felt added a mysterious element to her character. Marceline's relationship with Princess Bubblegum sparked controversy when the episodes "What Was Missing" and "Sky Witch" implied that they had been in a relationship, a relationship which was confirmed in the series finale "Come Along with Me". The relationship was also the subject of the second episode of Adventure Time: Distant Lands, "Obsidian", which was nominated for a GLAAD Media Award for Outstanding Children's and Family Programming.

Sweet princess:
Bubblegum is a candy humanoid of the same type as the inhabitants of Candy Kingdom, a kingdom she rules that is full of all kinds of desserts and sweets whom she loves and protects at all costs.
The former's platonic love, whose feelings are not reciprocated by her in part due to her great maturity and personality. As the story progresses, Bubblegum develops into a more independent and serious character.