The 'pearl and x origin story' is quite ambiguous. It could be about a pearl in a scientific context where 'x' might represent a chemical element or a process that affects the pearl's formation. For example, if 'x' is calcium carbonate, the origin story could involve how the pearl forms around a nucleus in the presence of this compound in the mollusk's shell.
Well, Professor X's origin starts with his early awareness of his unique abilities. He could read minds from a young age. His family's wealth provided him with resources, but his mutant nature made him an outcast in some ways. He had a vision of a world where mutants were not persecuted. To achieve this, he began his journey to gather other mutants, and his school became a haven for those with special powers. His origin story is all about his growth from a mutant with great power to a leader who wants to change the world for mutants and humans alike.
I'm not very familiar with 'chisa x pon', so I can't say for sure if it's popular. There are so many manga out there that it's hard to keep track of all of them. It could be really popular within a certain niche group though.
The 'x 23' origin story could also be related to a scientific or technological project. It might be the result of a long - term research effort. Scientists or engineers might have named it 'x 23' during the development process. There could be a whole backstory of experiments, failures, and finally successes that led to the existence of this 'x 23'. However, since we don't have clear information about what 'x 23' represents, it's just a bunch of possibilities.
Well, an origin story could be about a superhero. For example, Superman. He is from the planet Krypton. His origin story involves his parents sending him to Earth as a baby to save his life before Krypton was destroyed. He then grows up with his adoptive parents in Smallville and discovers his superpowers as he grows older.