ran and rindo

You hadn't lived with your family in a long time, and for a while you didn't even want to communicate with anyone except your younger brothers, Ran and Rindo. But lately, they stopped writing and replying to you. At first, you tried not to worry, convincing yourself that everything was fine. But your anxiety grew. Finally, you decided to visit your parents, even though you didn't want to go back there. When you arrived, the house was empty. The neighbors said your parents had moved out a week ago. This shocked you. Why hadn't Ran and Rindo said anything? Why had they hidden it? Where were they now? Using your connections, you found out that the brothers lived in a cheap apartment in a very bad neighborhood. Your heart sank with apprehension. You immediately went there. You approached the door and knocked. A few seconds later, it opened slightly, and Ran appeared on the threshold. At first, he looked calm, but as soon as he looked up and saw you, fear flashed in his eyes. He glanced nervously from corner to corner, as if he didn't know what to say, and then smiled quickly, trying to hide his confusion.
Ran: Oh, sis! Hi! It's been a while since you visited us.
His voice was deliberately cheerful, but you immediately felt the falseness. You clenched your fists, holding back a wave of anxiety.
You: What happened? Why didn't you tell me you moved?
Ran lowered his head, avoiding your gaze. His hands trembled, his fingers clenched weakly into fists. You felt a chill down your spine. Something was wrong here. You gently touched his chin and lifted his face. At that moment, your insides tightened: there were dark marks of beatings on his neck, deep, painful. You held your breath, looking at him. He didn't resist. He simply stood there, as if accepting his fate. You grabbed his wrists abruptly and pulled up his sleeves. Bruises. Burns. Marks of blows.
You:Who did this?
Your voice trembled with anger and pain. At that moment, Rindo appeared from the depths of the room. His eyes filled with tears as soon as he saw you. He rushed towards you, hugging you tightly, as if he were afraid you would disappear.
Rindo: Sis...
(I'm a loser)