If you're looking for anime similar to Immortal Rain, you might like these titles.
Noel, a young boy with a legendary hero known as the Overdeath as his grandpa. Admiring his grandpa, Noel aspires to become the strongest seeker, but his inherent support class, "Talker" is considered the weakest. Despite his efforts to become a skilled seeker like his grandpa, Noel couldn't bridge the gap in talent. However, with his unparalleled resourcefulness, he discovers the path to become the strongest. Gathering allies, Noel forms the greatest clan, aiming to become its master. With cunning strategies, he bewilders his enemies and leads his comrades towards greater heights. The most notorious “Talker” carves the path to supremacy, sparing no means to achieve it.
Tada is a young man on the fast track to the Cosmo Academy -- a school which only accepts applicants every three years, and whose entrance rate is under 1%. Having passed all the prior exams, the final test is drawing near: survive for 53 days aboard a derelict spaceship with only 9 other would-be cadets to assist you. But much to the dismay of Tada and his peers, their ship has acquired an eleventh member! Can the crew band together to survive the test? Or will sabotage simply destroy them from within...
Takeo Gouda is a giant guy with a giant heart. Too bad the girls don't want him (they want his good-looking best friend, Sunakawa)! Used to being on the sidelines, Takeo simply stands tall and accepts his fate. But one day when he saves a girl named Yamato from a harasser on the train, his (love!) life suddenly takes an incredible turn!
In a fairytale and storybook country, Firiel Dee has lived all her life in the peaceful Cerafield countryside. Her mother died when she was young, and her father – known by everybody as "The Scholar" – is alive but has a tendency to lock himself in his observatory and not give Firiel the time of day. On her 15th birthday, Firiel's life changes forever when she goes to a ball in Cape Amber wearing her mother's necklace that her friend and father’s pupil, Roux, delivered to her. Lord Roland and Lady Adale, members of the royal family, recognize her necklace as belonging to the runaway Blue Princess – leading Firiel to the discovery that she is the long lost princess' daughter! Now, she must compete with all of the other candidates to become Queen of the land.
In the present, murders are solved not by investigations, but by memories. Using the removed brain of a victim, the members of Forensic Investigation Office Section Nine examine the person's last thoughts to determine a suspect and motive in the case. Many oppose the violation of their loved ones' private and personal memories; but what they don't understand is that behind the scenes, even the investigators themselves are often conflicted with their deeds. Aoki Ikko is one such man who struggles to overcome his own mental doubts about his profession, while trying his best to take down those responsible for the crimes.
Azusa is not only the manager of the school’s soccer team, she’s also dating one of its players, Ikumi. However, recently Ikumi has been avoiding her, going home quickly instead of spending time with Azusa. What’s worse, she sees him walking home one day with a girl named Sayaka. Is Ikumi no longer faithful to Azusa?