If you're looking for manga similar to Wise Man’s Grandchild SS, you might like these titles.
College student Isogi Yuki is obsessed with the paranormal. In her constant search for proof of the supernatural, she goes wherever the evidence takes her, and recently that’s led her close to home—following her University’s new and mysterious transfer student! While spying on her research subject, Yuki ends up trapped in the middle of a magical battle (much to her delight). Luckily, she’s rescued by a strange, superpowered man in a lab coat whose companion is…the new transfer student?! She may have survived her first alien run-in, but now she’s got a bigger problem: avoiding abduction by a secret government organization!
Once every five thousand years, the twelve beast kings do battle to determine their places in the zodiac. That time has come once again, and the snake king Jaou has chosen Makabe, the "queen" of her school, to be his proxy in the upcoming war.
Kagefumi Merry takes place before the events of Yumekui Merry, and follows the adventures of a slightly different Merry than we are familiar with.
Shun has a unique power to electrically charge metal materials. A mysterious winged angel-like being named Air picks up on his powers and chooses him to become her partner, thus enhancing Shun's powers. Shun soon finds out that his classmate Sanari, who he has a crush on, also has a winged angel partner of her own, named Blissful. She explains to Shun that these beings are called Nephylym, and they chose suitable humans to be their "Answerers" to help them purify evil elements (Noirs). Together with Sanari and Tsukasa (Shun's rival in love and an Answerer as well), they battle alongside their nephylym against Noirs that possess human beings.