Written this to fullfill the prompt on exopromptmemeThank you for reviewing this, Gabby! <3Pairing: Chenhun, Sechen (Sehun/Jongdae)Genre: romance, warn! age gapP.S: Keep your expectations lowNana - secretyeoja - ForewordSehun visited one of his high school teacher, Mr. Kim Jongdae after their promises back to three years ago.Jongdae denied his true feeling and Sehun tried to explain Age is Just a Number.Will the student succeded to win his high school teachers heart?