After Grandma Was Poisoned, I Calmly Set Off Fireworks

The elderly grandmother died of poisoning in the hospital. I wasn't anxious at all, but my parents were crazy. They called me more than a dozen times without getting through, and finally left me a message asking me to rush over to see my grandma for the last time. I just glanced at it, then turned off my phone, then took a bunch of fireworks to the backyard of the villa to set off. In my last life, I received a call from my parents and rushed to the hospital like crazy. As a result, I only saw my grandma lying lifeless in the hospital bed with black lips due to poisoning! My parents slapped me twice and said that my grandma called them before she died and cried that I had mixed the poison with my own hands. While she was in the hospital, they beat her every day, causing scars all over her body, and threatened her not to tell anyone. So she doesn't want to live anymore! Even my brother, who is closest to me on weekdays, accused me of tricking my grandma into going to the hospital and abusing her every day in the hospital on the pretext of taking care of her! But I... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.