If you're looking for manga similar to Saishuu Shiken Kujira Progressive, you might like these titles.
His mother died on a night with a red moon. Many lives were lost that night. Since then, he and his father have lived with a girl who was orphaned on that crimson-filled evening. But tonight, the red moon will rise again, and with it comes more death.
Until she was ten years old, Refena McGuerite grew up basking in her parents' love. Then, her little brother Andy was born, and with his birth came her mother's death. Looking down into the crib at her sleeping baby brother, she feels pure hatred for the boy who had killed her beloved mother. Fortunately for her, before she was swallowed by her powerful emotions, her Aunt Birgitta slammed the door open while shouting Refena's name. Soon, her aunt, who swears that in her past life, she'd seen this world in a game she used to play, tells Refena of the fate that lies ahead of her if she keeps going down this path. This is a story about a girl who decides to defy her destiny, choose light over darkness, and find work so she can be financially independent.
Karasawa Makoto is the ordinary high school girl. One day, she receives a momento of her biological parents, and it apears to be some kind of divine sword that holds some magical beings inside it. And now, her life with the magical beings begins!
Kasumi was given a name favored by the gods so she would always be protected. Yet, when there is a drought in her village, she's the one chosen as the human sacrifice to go to beg the gods for rain. Her parents are sad, but Kasumi goes anyway. When she gets to the heavens, they try to send her back, but she won't go until her village sees rain, and now she's determined to become a fairy of the heavens. If it'll take 1000 years to learn to ride the clouds, she knows she'd better start now!
Kinoko, a junior high school student and assistant to a lackluster illustrator, catches her boss with a cute rag doll, which comes to life and begins to walk, talk, and display a bad attitude.
What do a demon who gets sucked into a dead body and a guy who gets rid of demons have in common? Not much, but that doesn't mean there isn't a story.