Sonic the Hedgehog : scent of melancholy

it's a series of comics with dark atmospheres and settings. 
== main characters ==
Sonic the Hedgehog 
Amy Rose 
Eggman 
Tails 
syndya 
jewel 
Shadow 
== other links ==
=== comics ===
issue 1 
=== animated series ===
episode 1 
=== novel ===
chapter 1 
=== more by the same author ===
Sonic the Hedgehog: one more time 
Shadow the Hedgehog: double game