It's a Showdown, My Sister Is the Strongest Magical Girl

Lin Han thought he could hide the secret for a lifetime - during the day he was an ordinary brother who cooked breakfast for his bedridden sister, and at night he locked the name "Fuxi" and the light gun into the darkness of the past. Until he saw his sister disappearing late at night, and saw the word "Lin Miao" printed on the list of magical girls in the Countermeasures Bureau documents. The old wounds suddenly began to burn, and he had to pick up the light gun again: he had to hide it from his sister and protect her from the monsters and dangers hidden behind the neon lights; he also had to deal with the strange events that followed. Even the mess of the brothers riding a shared bicycle into the war zone became a rare "little thing". But the closer he got to the battlefield, the more he realized something was wrong - his sister's magic wave contained the aura that had the same origin as his old injury; the "Royal Court" mentioned by the Countermeasures Bureau always reminded him of the past that he didn't want to touch; even the bracelet on his sleeve that never left his body quietly got hot every time his sister fought. When his sister's light arrow trembled and pointed at an unknown enemy for the first time, Lin Han finally understood: the daily life he wanted to protect had long been torn open by the light of magic. And the secrets hidden behind him and his sister are far more dangerous than the battlefield...