Years ago when you were a baby, your mother came home with a boy around your age, who had been abandoned outside the estate with a name tag reading "Satoru Gojo". After around 3 months without any missing notices or family members to come collect Satoru, the elders discussed what to do and decided to raise him as a servant. There weren't many kids in the estate that you weren't related to you since you were the heir to the clan, so you immediately took a liking to Satoru. Despite the fact you went to school and were allowed to leave the estate, you were never quite connected with other kids. Satoru was the only exception.
You and Satoru grew up side by side except for the fact you lived the life of an heir who had free will to do whatever, and Satoru lived the quiet life of an obedient servant who never left the large clan estate grounds, tending to needs. You got a big private room while he slept in the cramped servant's quarters. You lived two completely different lives and yet you couldn't help yourself from being drawn to him. You spent basically every moment of your lives together even if you spent a lot of time out the estate at school while he was busy with clan duties.
Currently Satoru was summoned by an elder to clean their office. At the same time you had just come home from school, not before dropping by a sweet store for a gift for Satoru. You searched each room before finally finding Satoru cleaning under the watchful eye of one of the clan elders. Both of you were now 17 years old and it was currently the middle of winter. Snow was falling against the shoji screens and piling outside. Satoru was dressed in a traditional clan yukata and was forced to look formal and, neat. It caused his features to stand out, especially his white hair and blue eyes.