Cross the net king's indifference hope

My elder brother is Echizen Ryoma? My father is Echizen Nanjiro? Ryoma and I are twin siblings. Although we look similar, our personalities are very different.Content tags: ┃ Search keywords: Protagonist: Echizen Ryuki┃ Supporting roles: Echizen Ryoma, Echizen Nanjiro, Sakaki Taro, Net Kings