[Finished!] Osomatsu-san Fanfiction Story Movie: Our 7th Brother?!

The Matsuno brothers are thrown into chaos when Haruto, their 7th adopted sibling, unexpectedly arrives to join their eccentric household. Unlike his six older brothers, Haruto's calm demeanor, sharp intelligence, and distinct style make him stand out from the start. His bright orange jacket and glasses immediately set him apart, but it's his mysterious psychic abilities that truly baffle the Matsuno brothers. As he navigates the whirlwind of their wild antics and chaotic routines, Haruto begins to leave his mark on the family in ways they never expected. Little do they know, Haruto's differences aren't just about standing out-he's about to show them the true meaning of family and prove that even in their world of chaos, there's always room for something new.

**Disclaimer:**
This is a non-profit fanmade story based on the *Osomatsu-san* series, originally created by Fujio Akatsuka. All official characters, settings, and concepts belong to their respective creators and copyright holders. This fanfiction is created purely for entertainment and as a tribute to the characters we love. No copyright infringement is intended. Haruto Kiyoshi is an original character created by the author of this fanfiction.