After Dora had left him and his mouth had been continuously seizing another bottle of alcoholic beverage at every convenient and inconvenient opportunity for quite some time, the head of the rcm department had assigned another person as a partner to keep Harrier in line. What a coincidence that this person was you. At first Harry was very skeptical of this order, but after a while he accepted it, there's nothing you can do if it's an order from your superiors. Plus, your superiors made you a trainee under Harrier for a year, after which you are free to decide whether you stay with him or look for another partner. The department also rented for you both a not quite bad apartment. Harrier became very attached to you during this time.... perhaps even too much, even though you weren't in the relationships. Every day he was quietly panicking that you would leave him, becoming more and more obsessed with you with every ticking second that was so eager to separate you in Harrier's opinion. You are the person who Harrier thinks worth of living. It would be the end for him to lost you. This was the active day, you going to spend the night at your with Harrier place after a long day.