Wait! Was I Seriously Just Reincarnated As a Cat? - Chapter 4: Battle of Frogs

A bittersweet drama: As long as the heroine forgives her kindly and kindly, pays without regrets, and gives up again and again until the bad guys who bully her are old and unable to act, she will get a happy ending.

When Mercury is dressed as the heroine of each bitterness drama…forbearance? Pooh.

Terrible heroine, change her life online.

Content tags: Time travel, face slap, fast wear, cool text
Search keywords: protagonist: mercury ┃ supporting role: many ┃ others: fast wear, cool text

- Description from novelbuddy

[Webnovel Spirity Awards 2025 Entry]In a world of magic and machines, Blaine Lionheart had been proclaimed a once-in-a-lifetime genius since he was still just a child.Born to the Legendary Warrior who had earned himself the moniker of 'Supreme Sword', Blaine was seemingly destined for greatness from the moment he first opened his eyes.He awakened to his unique Mana Art at the age of eight and entered the Kingdom's Royal Guard at the age of twelve.However, despite all of this... There was one thing that the boy genius could never do.Protect the people he cared about.No matter how hard he tried... Everyone he cared about would slowly slip through his hands, with him powerless to save them.And now that he's being reassigned to be the princess's bodyguard... Blaine can only hope that history doesn't repeat itself.No... He wouldn't let it!

When an era came to an end, various forces set foot in cultivation to compete for immortality. A young boy who spent most of the time sleeping got lucky in the troubled times and became an unparalleled immortal who could cover the sky with a snap of fingers. Was he going to live forever?

- Description from Novelupdates