Death Note, Zombie-Loan Recommendations
In both there is a power called Shinigami Eyes, which in DN allows you to see both the name and life span of anyone, and in ZL makes you see a ring on people’s neck: the darker it becomes, the nearer that person’s death gets. <br/> Both can be creepy at times, and both have Shinigami, death, supernatural, mystery, blood, a dark aura, and lots of bishounen. <br/> Both are really good, worth-reading manga, and both both are (wrongly) considered shounen.
Both have a death theme, along with shinigami and "Shinigami Eyes" and both are highly enjoyable.