What 아니메 do make your life changes and which character from 아니메 당신 had choose that decribe your worse personality to better one?

Prince of Tennis. It change my life full of darkness into 더 많이 colourful life. And I'll choose Keigo Atobe from Prince of Tennis. He first appeared in the series is an arrogant jerk, but he later did shows some improvement and consideration for others throughout the series. :3 <3