I want to see a character who you hate in the beginning go through a long series of events that change them slowly, until they eventually switch to being good.

Please mention the name of the character.

Thanks in advance.

I think most Thai dramas has one:

46 Days - Wisa

I Told Sunset about You (BL) - Teh

Move to Heaven - Cho Sang Gu

Tenno no Ryoriban - Akiyama Tokuzo

To the Moon and Back - Trai

 autumn iris:

I think most Thai dramas has one:

46 Days - Wisa

I Told Sunset about You (BL) - Teh

Move to Heaven - Cho Sang Gu

Tenno no Ryoriban - Akiyama Tokuzo

To the Moon and Back - Trai

Thank you. I will start watching  To the Moon and Back - Trai 

If You Wish Upon Me starring Ji Chang Wook. It is about him getting released from jail and is trying to hid from the gang he was affiliated with. So he ends up doing community service at a hospice. At the hospice they try to grant their patient's last wish. I loved his character growth in the show. And his acting is amazing in the drama.