If you're looking for manga similar to Kimera, you might like these titles.
In the time of the Vietnam War, an American military base in Japan is plagued with a rash of killings whose assailant is unknown. Enter Saya, a mysterious young woman who happens to be the last of the vampire race, and has been charged by her government agency employer to investigate the sinister killings. With demons and creatures abounding, Saya must infiltrate a school to put a stop to the bloodshed -- unless the monsters get to her first...
Akira is in the midst of the final battle between the human race and vampires. He only has 47 days until Japan is turned into an island of vampires.
Chronicles the events leading up to the development and eventual downfall of the Hikari Club.
While a young boy, just resurrected as a vampire, commits acts of awful ferocity, the city around him shows all its perversion. The adults abuse their power, the boys degenerate and use all the available means to achieve their goal to give vent to their low instincts. Whoever can't understand and make opposition is doomed to change or becoming crazy. So which is the real horror? The vampire who kills in order to feed himself or the crawling disease hidden in society, which slowy corrupts without being noticed?
Osamu Hirota is a high school student enjoying his aimless, ordinary life, until Soichi, a student from the next town over, takes him into a mysterious mansion. Inside was a naked woman who called herself Miwako... Now, he can never goback to his boring life. The curtain opens on this dark suspense story...!!
Sadayuki is a high school student on his morning commute with his girlfriend Hibino and his childhood friend Akari, enjoying the good life that comes with being with the top beauty in school and very close childhood friends with the cutest. Although often envied because of his relationship with the girls, he is considered a good guy as he always helps those in need. An 'ally of justice' and self-proclaimed hero, Sadayuki is eager to give a helping hand in the name of justice. Sadayuki finds things take a strange turn when Akari appears in front of him, covered in blood. Even stranger are the visions he starts seeing. As he is chased by a mad killer, the visions become more vivid and deadly. The stage is set. The cast has been gathered. The story follows Sadayuki's struggle to survive and save his friends.