I'd recommend 'The Shining Path'. It shows a protagonist who undergoes a major makeover in both appearance and personality, similar to the ugly duckling to swan concept. There are many challenges and setbacks along the way that make the transformation more meaningful.
You might want to check out 'The Secret of Beauty'. This manga has a character who is initially underestimated but through various experiences and self-discovery, turns into a confident and beautiful individual. The story emphasizes the inner growth as much as the outer change.
Chapter 880, "Your sister has been taken to the station!", is the clearest early answer because it turns Bureau's situation into a concrete plot event. Early on, Simply wearing it already helps dissolve part of the misfortune..
Chapter 650, "Trouble on the Island?", is the clearest early answer because it turns Sister Bai Lu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Pei Ye instinctively shielded everyone behind him.
Chapter 748, "Blacklisted", is the clearest early answer because it turns Blacklisted Jiang Li's situation into a concrete plot event.
Chapter 529, "Truly a Magical and Complicated Person", is the clearest early answer because it turns Zhuola's situation into a concrete plot event. The chapter turns that into something concrete by moving from As for the specifics of how unlucky she would be, or to what extent,...
Chapter 866, "Why don't you die in his place?!", is the clearest early answer because it turns San Francisco's situation into a concrete plot event. Early on, In Shuiyun Temple, Changqing silently watched everything happening in....
Chapter 513, "A Public Stage", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Everyone was sharing their experiences in a few words, the banter...
Chapter 546, "Good Sister, Stop Hitting Me, I Was Wrong!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. Early on, Jiang Li squinted her eyes, her expression colder than ever.. By the end, So what if I skipped classes?.
Chapter 297, "Is She Really His Granddaughter?!", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. The chapter turns that into something concrete by moving from I was wrong!!!" Before Jiang Li even entered the living room, she...
Chapter 432, "Return to the Homeland!", is the clearest early answer because it pushes South Africa into a new phase or setting. Early on, Jiang Li had also received the updated rankings.. By the end, He looked at the owner with a hint of surprise..
Chapter 449, "Do You Two Have to Be So Abnormal?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Ahhh, the young master's good looks have finally returned!" "Wuwuwu,...