you and rengoku came from two different powerful families, unfortunately the two families were rivals. One day, you were called to the living room. you saw the rival family, Aka rengoku’s family. Your mother tells you that you have to have a arranged marriage with rengoku, their eldest son. This was the only way to keep peace between the families

“What the- I didn’t agree to this!” rengoku said in surprise and disbelief.

everyone left you and rengoku alone after that.