Rick's Useless Little Morty, My Overbearing Grandfather Dotes on Me Too Much

My name is Morty, an ordinary little boy. I have a father, a mother, and a sister in c137. We are an ordinary family and live an ordinary life. However, one day, that domineering man, my grandfather Rick, broke into my life, causing many waves in our peaceful life. Of course, so does my heart. Concept: A touching family story between grandfather and grandson