My Daughter is a Vampire - Chapter 66 Lesson for Brian

A boy awakens alone in the Fairy Tail world, lost and uncertain. As he ventures through this magical realm, he unravels the secrets of his mysterious new identity, unlocks hidden powers, and carves out his destiny in a land brimming with wonder, danger, and limitless adventure.“Check out my other work, Reincarnated as Ash: A Pokémon Tale.”

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

After a god screws up and accidentally takes high schooler Shou’s life, he offers him reincarnation with a gift to make up for it. Shou asks to retain all his old memories for the new life. Shou is reborn as Will, a noble’s son in a world where magic use is common and involves knowledge of kanji characters. With all his memories, he’s a brilliant toddler, and when he experiments with magic, he finds that he has an amazing talent for it! What’s more, though he was smart but unloved in his old life, in his new life he has a mother and a father who both love him deeply. His future as Will is looking very bright and cool!

“How the hell is this possible?”Dead and betrayed in the snow with the rest of his squadron, Mikhail is surprised to find himself regressed in time.What's worse was that he had no idea how or why he regressed as his memories at the time of death were completely gone.With his element of Oath -the power to make vows in exchange for power- also now messed up, Squadron Leader Mikhail Hendrix must now navigate through this changed storyline with no clues at his disposal.He needs to try his best to keep his squadron alive in this dangerous world of gods and magic, all the while figuring about his regression and the woman.