 If you liked
Densha Otoko
|
 ...then you might like
Jaku-Chara Tomozaki-kun
|
Both contain the main character taking advice from other people (one person in Tomozaki-kun and anonymous people in online threads in Densha Otoko) to improve their self-image/appearance and confidence. Densha Otoko's more of a romance story featuring some self-improvement while Tomozaki-kun focuses on self-improvement as the core idea for the story.