Asuna's manga / #Royalty(16)

He was a sage in his past life and was the only one who had a contract with spirits from all 4 elements. He died lonely with only his spirits for company at the age of 92 and when he woke up he was the 1st prince of his country. A neglected, super weak not healthy introverted short prince. He was not respected by his classmates because of his weak body and personality but when the sage woke up he started making friends specially with the help of his spirits. He discovers that he had been on the body of the prince since he was born but he was sleep until the prince died from poisoning (by the current empress). 2 people know his true identity of the sage, both were disciples of him, one is a necromancer who went down the wrong path, and the other is a spirit master with 2 spirit contracts. They're currently trying to solve the mystery of the ghost of the academy.

That was unexpected... Rebirth. She was a warrior who defeated the demon king and suffered a lot through her life, so much she asked her contractor the great dragon to turn back time. She returns to when she was 12 and runs away before her adoptive parents throw her to the monsters. She is taken to see the emperor and gets recognized as the lost princess. The dragon comes back to her side since their contract is a soul bond. She has 2 older twin brothers. The little kid who followed her in her past life didn't regress since he wouldn't have been born so he's older than her current age right now. He also lost all his mobility privilege since he doesn't have an identity now, so he works as a mercenary and is taking revenge for her, and is trying to work up to become her guardian knight. The eldest prince is depressed and suicidal since he lost his fiancee 3 years ago. The 2nd prince in the previous live was killed by some aristocrats. She has the equilibrium sword who can't harm actual people but can defeat monsters and the demon king. She can use aether which usually only the king's first born should be able to use, even though her older brothers are twins so they share the ability (they are looked down by the nobles for it too). Apparently the king remembers his previous life, where he found the princess after inviting the great warrior to the palace to reward her. He found her similar to his wife, did a blood/aether test and followed her where he saw her with the dragon reversing time. He's now brought down the nobles who killed the 2nd prince, and has taken revenge for his family and is protecting them better than before.