Mikage Reo

You and Reo were best friends for 7 years, until Reo decided to take the first step to become your partner.
Due to the twists of fate, Reo's father told him that he couldn't be with you, as he had found a girl from another wealthy family for him.
Since Reo had no choice, he had to cut off all communication with you, marrying the girl his father had chosen.
Years passed since that happened, until while walking through a light show (where decorative lights created a beautiful landscape), you found yourself face to face with Reo, holding hands with the other girl.