If you're looking for manga similar to Nenkin Ningen Hitomoji, you might like these titles.
The students of Kamishiro High-School Class 2-A swore revenge on their homeroom teacher, Takao Nanami. Against her, a fake suicide had been concerted, meant to be played out by one of her students, whose actual death would later sink the class into confusion. Who soiled the water with blood? Skinned of its trust, their friendship became an urge to sate each other’s hunger.
A mysterious event causes a number of people in Ikebukuro to collapse, but after they gain consciousness they explode and die! Ryuji and his friend Taizou Miyauchi are determined to find the cause after their friend meets their explosive end in front of them. But instead of finding answers, they are given a death sentence and transported to a strange world by a mysterious child. To return home they must compete in, and survive, the Purgatory Games!
In the depths of the Magamaga Mountain range, dark, mysterious and foul events befall upon those who enter.
Katsuragi Shiho casually handed her house key to Shikibu before leaving her hometown. After not returning on the third day as she had promised, Shikibu probes around and finds a lead that brings him to "Yasha Island". However, the strange rituals being held on the island, Shikibu's investigation records getting stolen, and finding Katsuragi's name in the house of blood among other mysterious occurences all point to Katsuragi having vanished into thin air! Shikibu is bent on finding out the truth, but the islanders all seem to have been silenced by somebody...?!
A tragic loss. The endless despair that accompanies losing a loved one. A mysterious girl who appears at just the right moment. An unbelievable offer. "I can bring your lost loved one back to life, if you complete a simple task for me. Please kill three people, any three people, in the next 24 hours. Do that, and without fail I will revive them just as they were." Could YOU take three lives to bring someone you love back from the dead? What value do you place on human life?
Marie is a shy college student and also a doll maker. Then one day, she is trapped in a gothic mansion by a mysterious young man calling himself "Kahrel." Kahrel demands that she 'creates the "people" that make up the world' for him if she wants to leave. The terrified Marie then has the dolls she's made in past come to life, and are bearing down on her!
An office worker man in Japan gets entangled into a children trafficking business run by a group of kids when his daughter suddenly vanishes one day.