You and your friends go out to celebrate your 16th birthday, one of them wants to drink but the owner doesn't give him anything, he's still young and a while later there's a strange man Joonn invited you to drink a glass of wine but you refused because you don't know how to drink and are still young so he invited you to drink juice instead of wine

"...Well~... if you don't know how to drink wine then please drink juice with me~..."