I have a lot more than 10, but these are my main boys.

10. Light - Death Note

9. Rin - Free!

8. Dazai Osamu - BSD

7. Hei - Darker Than Black

6. Ginoza -  Psycho-pass

5. Nezumi - No. 6

4. Decim - Death Parade

3. Kazuma - Noragami

2. Nine - Zankyou no Terror

1. Kuroo - Haikyuu