Extreme Flame Wizard - Chapter 187: The Little Brother and the Wizard

A chance to change, to challenge destiny, making dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish!

- Description from Novelupdates

Born and raised in a remote village, Sheila entered the Royal Academy dressed as a man to become the knight of her dreams. However, what awaited her there were only characteristic and beautiful aristocrats. She was able to overcome the prejudice and harassment against commoners, and her natural thickheadedness and good-natured attitude allowed her to gradually gain a place in the school.“What? Only nobles have magical powers? But everyone in our village could use spirit magic.”If the spirit arts that shook the country to its very foundations and her gender were discovered, she’ll be instantly kicked out! Sheila’s tightrope-walking dormitory life began!

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates

Lin Chuyi, after meticulously selecting for three years, chose a high-quality boyfriend, only to be cheated on a month into the relationship. She decisively broke up with him and immediately took the place of the Ye Family's daughter, marrying the heir of a wealthy family, Sheng Tingyuan.She planned to leave gracefully when the Ye Family's real daughter returned.Sheng Tingyuan blocked her path, “You lied to me and now you want to run away?”Lin Chuyi, “Don't you hate it the most when people lie to you? Should I not run and wait for you to deal with me?”Sheng Tingyuan pressed her into a corner, “You're not 'other people,' wife.”