15 parts Complete A discontinued fanfiction from when I was eleven. I decided to repost this due to the announcement of Osomatsu-San season 3.
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Ichimatsu Matsuno was a regular, quirky, and spontaneous child back then. Well, not so regular if you counted his four brothers. Though, having four brothers must mean you're hardly ever lonely, correct? Not if you are Ichimatsu. Due to the odd number, they always leave the second youngest behind as the 'back-up'. They never needed back-up. So the fifth brother would always be left behind.
That's when Ichimatsu made an imaginary friend, Jyushimatsu Matsuno to change this, letting him be social for once to one of his 'brothers'.