Naruto has a harem

It was surprisingly persistent rumor which was the only reason she was even entertaining it, but apparently at least 3 times a week Naruto would have a different girl go to his house and stay the night, or he'd go to there's.

Some of the girls rumored to be in on it were Hinata, Kurenai, Tenten, Tsunade, Anko, Shizune, Ayame, Tsume, and Temari.

It sounded ridiculous to Ino, especially because the rumor had started years ago but still kept popping up, despite as far as she could see it having no proof at all.

So to prove it she'd either have to follow Naruto around for a week or two, or follow around one of the girls that were supposedly in his harem.

Naruto would be quicker but also had a higher risk of discovery.

She could also follow the girls but she'd have to do most if not all of them, but it was less likely to get anyone angry at her and she might find dirt on the girls anyways.