حقيقة رسمية من كيشي..
It was said that in the Shippuden arc; Sasuke, who was still at Orochumaru's hideout at Oto, would from time to time think of a certain Pink-haired girl. He would imagine her still in her 12-year old self along with that mesmerizing long hair of hers^^
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Kishi-sensei told it himself