Issues I've found(IMO):
1. The title - You should remove the period
2. The synopsis - 'On her journey in another world, she changes its fate and finds her happiness.'
- Should change to: 'On her journey to another world, she changes her fate and finds happiness'
3. The dialogue - This isn't a issue per se, but the dialogue format is very unique and might be confusing for some people, you should try the standard format
4. Some grammar mistakes in chapter 1
Good Points(IMO):
1. So far, your grammar is much better than a lot of original novels that I've seen(better than a lot in the top 20 - chapter 1 wise)