They could be yelling because they are in a competition or trying to get someone's attention. Sometimes, it's just a way for them to express their emotions freely.
I don't know anything about the novel collection of " Aqua and Red Cherry ". Can you provide more context or information so that I can better answer your question?
The bellhop could have been yelling because he was caught up in the intense and confusing situation, trying to make sense of it or get someone's attention.
I'm not sure there is an official 'sexy' version of the Kingdom Hearts Aqua story. In the regular Kingdom Hearts, Aqua is a keyblade wielder. She is strong and brave. She embarks on a journey to protect her friends and the worlds from the forces of darkness. She has to face many challenges and enemies along the way.
In a crossover fanfiction, Aqua could be paired well with Mickey Mouse. Mickey has a deep understanding of the Kingdom Hearts universe and his magic could complement Aqua's Keyblade abilities. They could embark on a journey together to uncover some ancient secrets that are crucial to both their worlds. Also, Elsa from Frozen could be a great pairing. Elsa's ice powers and her struggle with her own identity could find an interesting parallel with Aqua's journey and her powers. They could help each other grow and face challenges together.
Perhaps the old man yelling in the cartoon is a symbol of protest or a way to express dissatisfaction. It might have a deeper message or just be for comedic effect.