How Many Times Have I Told You? Don't Call Me Big Bro!

[Hot-Blooded + Hilarious + Savage Antics + Absolutely Shameless + Daily Life + Slacker System]

I transmigrated into a parallel world while taking a dump, and somehow became a grown-up Crayon Shin-chan? And now the system wants me to become a delinquent! Dominate Green Ivy within a week of transferring, help the Tokyo Manji Gang through a crisis, bring Taiju Shiba to heel, sweep through the SWORD district, defeat Kohaku, recruit Yoshiki Murayama, and crush Suzuran! But that's only the beginning!

Sayaka Katahara: "The ultimate winner of the Kengan tournament is! [The Demon]!! Shinnosuke Nohara!!!"

Tokugawa: "The champion of the Underground Arena! Is none other than [The Demon], Shinnosuke Nohara!!"

Baki: "Why do you have Hanma blood in you!?"

Yujiro Hanma: "Kid, your purity isn't bad! I acknowledge you as a male!"

Note: This synopsis doesn't do the story justice. This book is a slow burn, so please read the actual story. [The author is a perfect gentleman]