"The 101st Heroine, also known as Yoon So-yi, is the main protagonist of the Japanese manga series of the same name. She is a high school student who gets transported to a medieval world and becomes the 101st Heroine, designated to save the kingdom from a powerful evil force.

So-yi is a strong-willed and determined young woman who refuses to give up on her mission despite the many obstacles and challenges she faces along the way. She is skilled in archery and sword fighting, and her quick thinking and resourcefulness often save her from danger.

Throughout the series, So-yi develops close relationships with many of the supporting characters, including the handsome knight named Emrys and the quirky fairy named Pipi. She also discovers that her friend from the real world, a classmate named Min-ah, has been transported to the same world and is working alongside the enemy forces.

So-yi's journey is not without its ups and downs, as she struggles with homesickness, uncertainty, and betrayal. However, her unwavering determination and courage inspire those around her and ultimately lead her to triumph over the dark forces threatening the kingdom.

Despite her heroics, So-yi is not invincible and often gets injured or exhausted. Her vulnerability and humanity make her a relatable and endearing protagonist for readers of all ages.

In conclusion, The 101st Heroine is a captivating heroine whose courage, strength, and determination make her a role model for readers everywhere. Through her struggles and triumphs, she teaches us the importance of perseverance, friendship, and standing up for what's right."