Kim Seolhyun (the main character), once a hater of the so-called Korean boy group, "BTS", changes completely, once Kim Taehyung and Kim Seolhyun, herself meets up, unexpectedly, and forms a strong bond.

She, who throws shade and hate comments about them, especially to Kim Taehyung, finally meets her nightmare.

She, who is one of Taehyung's haters, has an anonymous social media.

On that anonymous account of hers, she comments negative things to ARMYs and to the members of the group, BTS on uploaded-online videos or photos of them.

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Kim Seolhyun never stops spreading hate comments about BTS, especially Kim Taehyung.

It became like her hobby, up until she met him, personally.

She didn't understand why she hated them so much at first, but once she got into stalking them, she finds out horrific things about them, and spreads the negativity to other ARMYs.

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Kim Taehyung, who has yet to meet her, has no idea about her social media account, until they have a strong enough relationship.

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This whole story is using Kim Seolhyun's (and only hers) perspective.