Time Travel: The Heroine Has Arrived! - Chapter 18 - : General’s Mansion Eldest Lady VS Transmigrated Younger Sister (Part 17)

[No fixed CP + wear books + brain hole cool text + women disguised as men + group pet]

Gu Lan crossed over and became the cannon fodder of the original book disguised as a man, counterattacked the protagonist of the original book who slapped her face, and lived in a dormitory full of sickly beauties.

Until one day, she discovered that her roommates were villains from other horror novels. After discovering the secret, Gu Lan thought she would be killed, but her roommates all looked at her strangely… Contrasted with cute Zhengtai, sickly and beautiful boy, split personality school girl, cold and stern school bully, romantic and noble son who plays Shura every day field.

- Description from novelbuddy

The world of pokemon is synonymous with young boys and girls going on a journey and facing many challenges.

This story is not like that. This story is about a SI coming into one of the most prominent companions of the pokemon world. Unlike other stories, Brock is already established and has gone on his journey. He's faced challenges and returned home to be other people's challenges. Which, there's a lot more to than most people realise.

Explore an alternate pokemon universe with an expanded cast and more mature ideals through the eyes of Brock, Gym Leader to Pewter City Gym, and family man.

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates