If you're looking for manga similar to Shinjuu Muri, you might like these titles.
A boy asks his robot companion Omni for help, but the robot keeps getting the context wrong.
Jun receives a phone call from his wife Manami telling him that she's about to give birth, while he's at the apartment of his mistress Yoko. He promptly breaks up with his mistress and runs out the door to rush his wife to the hospital. Unfortunately, the elevator becomes stuck on the way down, and he's trapped with three strangers. To pass the time, they decide to share their deepest, darkest secrets. Jun can't help but be horrified by the criminal acts these seemingly normal people are capable of committing... and getting away with. Will a rescuer ever come, or will they be stuck in this nightmare elevator until they all die?
When our protagonist came to an abandoned house to commit suicide, the house owner may have something to say about that.
Mikoto Ochiai is ready to jump off the rooftop of her high school's building after she got rejected by the boy she loves. However, her physics and home room teacher Jin Haiba suddenly appears on the rooftop for a smoke, talked to her and saved her from falling down. He even asked her to go out with him which made her confused. How will things go between the smart and calm Mikoto and her seemingly carefree teacher Jin?
Three years ago the aliens invaded Tokyo. Nothing was ever the same again. But after a while, even impending doom starts to feel ordinary. The Japanese Self Defense Forces are still looking for a way to combat the looming alien threat three years after the invasion, but so far conventional weapons have had no effect on the mothership. Maybe it’s time to try something unconventional. Meanwhile, Kadode Koyama is in high school. She and her best friend avidly track the aliens’ movements on social media and less enthusiastically study for college entrance exams. When the end of the world is overhead, you learn to take things one step at a time.
The Rapeman, is a high school teacher by day and dispenses his surreal brand of "justice" at night under the business "Rapeman Services", which is co-run with his uncle, a former surgeon. He uses rape as his weapon. The business' motto is "Righting wrongs through penetration". Clients call on The Rapeman to handle cases such as the revenge of a jilted lover, forming parental bonds through a traumatic crisis, making disruptive co-workers more docile and other things of that nature. When engaged in his night trade, The Rapeman wears a black leather ski mask shaped like the head of a penis but no trousers or underwear. In the middle of a rape, if the woman became unresponsive or appeared to be enjoying the violation, he would use a "special technique" such as "M69 Screwdriver" or "Infinite Loop" to apply more pain to the victim. He sometimes has regrets for the contracts he fulfills, but he always does the job.