Who is HeWho Is He; 谁是那个他; Shéi Shì Nà Gè Tā; Shei Shi Na Ge Ta; Who Is That He

The cheerful and optimistic brother died suddenly. Mu Siyang lurked into the school to investigate the cause of his brother's death. The scares followed: his roommate was a friend; his brother's rumored boyfriend wanted to kill him; all the guests of his brother's work station wanted him... What did my brother go through before he died? +