The book is called Acting like a spoiled brat in the sun.
It mainly tells the story of a girl with low self-esteem and no self-confidence who meets the true love of her life. The two get acquainted on the train and accompany each other along the way. Little did they know that the little spark of love is slowly burning. There are bumps and bumps along the way, practicing the trajectory of love. In the end, the lovers finally get married. If two people are in love, nothing in the world can be separated.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.