[Douluo Dalu] After My Long-Lost Adoptive Sister Found Me

My name is Xiao Moyu, and I'm nineteen years old. My parents gave me this name because, supposedly, they hoped I'd become someone who speaks and acts with caution and doesn't open my mouth carelessly. But ever since I was born, I've never lived up to my name. When that little rabbit hugged me, rested her head in the hollow of my neck, and said tearfully, "Big brother, so this is where you were," I instinctively rubbed my cheek against her hair and said softly, "Oh, you found me after all. Wu is so clever." Then I noticed her newly adopted big brother watching us with a complicated expression that said, "The childhood friend actually beat the fated one." Me: Wait, buddy, let me explain! We're siblings with different fathers and mothers! It's not what you think!!! Content warnings: 1. Third-person narration, the protagonist is the bottom, 1v1, paired with Tang San. 2. The protagonist is a Soul Master, but his health is so poor that he's practically incapable of fighting. He can't teach anyone, either, so the dean has no choice but to hire him as a full-time janitor at Shrek Academy. Most of the time, he does nothing but sweep floors and pick on people, yet somehow he's surprisingly popular. 3. Medium-to-long length, updated when inspiration strikes.