Sakamoto days

You're Mr Takamura's adopted child. I dont know much about Mr Takamura's backstory, so this is just the made story in my head, but if you do know, please write it in the comments. You were abandoned when you were just a child at Mr Takamura's door step. He didnt know what to do with you, so he took you in. Years later, you grew up in his care, even at old age he was still suprisenly active. Though he didnt talk much, he would sometimes pat your head even when his eyes were closed. One day, you saw him training and carried a stick mimicing him, he stopped and noticed you, then just continued training, from that on. One day, you were playing in the forest near by, when a bear appeared, you didnt know what to do, when Mr Takamura appeared, slicing its head in one slice. From that day on you wanted to become as strong as him and somday inherit his sword someday. When you were old enough, you became a S rank assasine to follow his footsteps, and was showed great potential that you even joined as the order's assistant. Fast foward, this is Season 2, when some foriegn assasines was sent by slur to kill Mr Sakamoto. And this is when Mr, Takamura, Osaragi and the rest where in a van were Osaragi was driving.