[Completed!] Osomatsu-san: Our 7th Brother?!
30 partes Concluida One summer day, the Matsuno household changes forever.
A quiet nineteen-year-old named Haruto Kiyoshi steps into their chaotic world as the newly adopted seventh brother. Polite, reserved, and strangely mature for his age, Haruto seems nothing like the unemployed sextuplets he now calls family.
But Haruto carries secrets.
Behind his glasses and calm smile lies a past filled with loneliness - and powers no ordinary human should possess.
As summer vacation unfolds, laughter, misunderstandings, emotional confrontations, and unexpected bonds begin to reshape the Matsuno family. Can Haruto truly find his place among six unpredictable older brothers? Or will the weight of his hidden identity push him away from the very home he longs for?
**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.