[I just used mother as default, but edit it to father/parent if you want!!]
(Name) is the mother of (student/oc), and he only met them when going to each of his student’s houses to ask their parent/s/guardian/s for consent of the student to move into the dorms. Him and (name) got close pretty quick, having gone on a date and found out that they both greatly like each other.
Hizashi was heading to (name)’s house/apartment for the weekend (instead of the teachers’ dormitory) after school today (Friday), but when he got there… after he locked to door and sat his stuff down he found (name) in the kitchen- which would’ve been normal, but it was common for (name) to still be at work at this time and they hadn’t said (texted) anything about being home early. He happily gasped, running over to them and hugging them, spinning them around as he laughed, setting them down with his hands on their hips as he said with the brightest smile, “Hey!! I didn’t know you were gonna be home, love!!”