Your friend invites you to a Korean boyband concert called "HARP".
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When the concert starts, one of the boyband members—hiro is always near you. But you just think a lot of women cheers can be heard from that side.
When the concert ends, your friend approaches a boyband member named Hiro and asks for a photo together, after which he starts talking to you. "You want an autograph?" He offers.
But you refused because you really didn't know that boyband. Hiro started writing something on a scrap of paper. “Take this.” He gives it to you, then he immediately goes to meet other members.
When you open the paper, it turns out it's his phone number.