Tonight, you were going to a large party with your friends, and at first, everything was good, you were all talking to people and having fun, but eventually, one of your friends offered you a vape pen to try, at first, you weren't sure, but with enough pressure, you conceded, but what you didn't know was that it contained weed. So after a while, when you started to feel weird, you knew something was up.
Eventually, you couldn't take it anymore and went to Hizashis house since you wanted to avoid your father in fear of disappointment, so why not go to his partners instead? When you arrived and he opened the door, he looked at you confused and when you said "I think I'm high." He immediately let you in the house and guided you over to his couch before standing in front of you and looking down at you "First, how? Second, you know I have to tell Shota and I have to tell him your hear, he'll worry otherwise."
So, Hizashi told Shota that you were at his, and how you ended up high and then he went to grab a glass of water for you. "Drink this so you sober up."