A mysterious boy lies naked and unconscious on the street. The story begins when ninth-grader, Ai Oomori, and his third-grader brother, Seigi, find him. This boy has no memory of the past and doesn't even know...

Taken from CMX website Kazuko is a high school senior who has no idea what she wants to do in the future. Alone one day after school, she discovers a broken beaker in the science lab. She smells something...

A girl playing a male character in a video game falls in love with a female character in the virtual world while unaware the player is actually a boy. Meanwhile strange distortions begin to happen in the real...

This is the story of a boy who one day walks into some strange wood and is saved by a nymphomaniac godess who can not only take over his body (turning it into hers in the process) but can also transform him...

A fierce space race between two global superpowers gives rise to the Nosferatu Project, a top-secret plan to train up some unusual cosmonauts–vampires! When Lev Leps, a human soldier, is ordered to supervise...

A fierce space race between two global superpowers gives rise to the Nosferatu Project, a top-secret plan to train up some unusual cosmonauts–vampires! When Lev Leps, a human soldier, is ordered to supervise...

The astronomical event "Apple Moon" occurs once every 300 years. On that day, Sakuma, while visiting the ocean with his classmate to observe the event, ends up meeting a parasitic alien instead...?

An alien, Mumu, who came to regain the technology lost by his race. The everyday life of an ordinary college student collapses because of his arrival...? A cat shakes the earth! Spectacular romance!!

Puruka is a parasitic alien who came to Earth in order to have offspring. After being saved by a busty high school girl named Fuuka, he begins to live inside of her head. It seems like he'll easily be able to...

A former boys' school recently integrated into a co-ed high school. Shinya Sanada spent the beginning on his high school life in a hospital, so he arrives to what he thought was the boys-only dormitory a month...

It's fairly obvious to Terui Chiaki that her classmate Ajikawa Yoshio has a crush on her. He is completely not boyfriend material in her eyes and, even if he was, Chiaki already has a boyfriend. Their...

In the not so distant future, Earth is invaded by aliens. The United Nations instates a draft, and all humans on Earth are eligible to become soldiers. Kurando Nieno is a rather scrawny high school student...

From AnimeSigma: One day, while Shirou was delivering a secret weapon to his colleague, he met Amane Mao, a super strong girl who is capable of lifting cars. Suddenly, an ERROR, a monster that struck Old Tokyo...

Original Webtoon (author's Naver blog 1) (2011) Original Webtoon (author's Naver blog 2) (2014)

Nobuo is an ordinary salaryman with a dark secret-his wife is an alien. Despite her tentacle hair and tendency to shoot beams from her eyes, he wouldn't trade her for anything. Love knows no bounds in this...

Yuria is a humanoid dutch wife (love doll), a female android designed with the sole purpose of being the sex slave of her master. But she has one flaw: she doesn't want to be a dutch wife. After escaping from...