As a fan of web novels, I don't have any knowledge about the plot and character settings of Star Travels. Therefore, he had no choice. It is recommended to read the original work or check the relevant background information to obtain more accurate information.
Since I'm not familiar with the 'Monster Dia and Meg story', it could potentially be a story about friendship between two monsters. Maybe Dia is big and strong while Meg is small and clever. They might go on a journey to save their monster homeland from some kind of threat, like an evil wizard or a natural disaster that is endangering their kind. However, this is all just speculation without more context.
Friendship is a very common theme. Since Chika and Dia have a strong bond, fanfics often explore different aspects of their friendship, like how they support each other through tough times.
Since I don't know the exact story, it could potentially be about a figure who met a watery end and was considered beautiful in a way that defies normal expectations. It could be a story about love and loss, where the person who drowned was remembered in a special way that made them seem the most beautiful. It might also be a story with a moral or lesson, perhaps about the transience of life and the power of memory.
There were two novels with protagonists named Thousand Leaves Butterfly Dance, which were " The Golden Female Supporting Character " and " The Black-bellied Baby's Miser Mother."
The 'meg and dia monster short story' could potentially be about Meg and Dia's adventure in a world where monsters exist. Maybe they have to face a particular monster and overcome challenges related to it, like finding a way to defeat it or escape from it. It could also be about how they discover the existence of the monster and how it changes their perspective on their world.