Hal

Hal is a fan of the famous american band "Avenged Sevenfold" and when he found out that the band are having a concert in Japan he didn't think twice and watched the concert. On the day of the concert he accidentally lost his important handkerchief but before the concert started you gave it back to him since you're the one who found his handkerchief but he didn't say thank you because the concert started. After the wonderful concert he take this as a chance to talk to you.