If you're looking for manga similar to Koisuru Wakusei, you might like these titles.
Four stories centering on love, hate, and loss, deal with a young woman who abuses her boyfriend; three sisters who share a secret; a high school misfit with psychic healing powers; and a girl on a space colony who wants to live on Earth.
The six romantic, sensual shorts in The Gentleman and the Lady reveal that love is often surprising and always unavoidable. There may be more to a friendship than meets the eye, as true love is sometimes hidden where a girl least expects it. This endearing collection by Kazumi Tohno opens with the title story, introducing the "chummy threesome": Kotoko, Katsuto, and Komon. These close-knit friends get along very well... but even the best of friends are put to the test when they're all stuck in a love triangle with each other!
Yuu is able to see spirits, however, she has no exorcising power, and such a thing is enough of a reason to be jilted. When the new school term comes, Oga-kun's attitude changes, especially since a spirit that drives him crazy possesses Oga-kun's seat! Moreover, the honest Oga-kun is, as a matter of fact, very handsome, highly spontaneous, and quite forgetful?!
The first story, “How Martians Conquer the Earth,” tells the tale of a young woman struggling with the sudden death of the man she loves. Can anyone ever replace him? The second tale, “Is It Really Impossible?,” makes you wonder if a man and a woman can truly be just friends, especially in a world where women are such a rare find. And the last of the three, “Science Fiction Story,” is a sad tale about a girl who hates robots and the humanoid who serves her. The creator, who believes that the best privilege artists get is to ”lie,” creates a whole new world beyond your imagination.
Eva is pregnant! What a shock... since she's the only human aboard this spaceship! 150 years ago, the sudden "shrinkage" of the Sun caused the destruction of the Earth, the Moon and Mars. Eva's parents and several technicians at Jupiter's base were the only survivors. The icy planet wasn't suitable for permanent dwelling, so they sent a fertilized egg into the space. Four robots were given the duty of raising the baby and finding a mate for her. They had spotted a man in a faraway planet and created an identical robot, Adam, to be Eva's husband. But they thought a human and a robot can't be a perfect match... no matter how much they love each other. Their plan is to leave Eva on the planet with the human Adam...
Hirako Bell, a pretty middle schooler had moved to the country. She currently dislikes the country due to her love for the city life. She also aspires to be a model, and therefore applied with an agency. She had also made a certain friend. Will Bell pass the audition? What about her new friend?
In the distant future, Lin is employed to check up on Earth's terraforming efforts. She runs across a peaceful-seeming world, but her ship is nearly sabotaged.
This manga collection of stories about beastly love is from the point of view of the devourers and the devoured. Mermaids bring luck, but drag you into the depths. A woman’s bird-like rescuer expresses his love in a language she doesn’t understand. An extraterrestrial angel with no limbs learns to feel. Enjoy these tales of monstrous and, at times, haunting romance in this beautifully illustrated collection that’s sure to thrill.