Story : The day I decided to make my 10th confession to Hae-young, who I had a crush on for 5 years! Absolutely! Common sense only shows Hae-young hugging her next door neighbor Na-rae! Asking to clear up Hae-young's misunderstanding, her common sense is honed... Na-rae hears a shocking fact while explaining it to her Hae-young... Confession of common sense. Will it be okay like this?