I'm Not a Passerby, Why Am I Being Targeted?

[The heroine is ruthless, aloof and cold cat who shows up to be lazy after becoming familiar with her. And the heroine is very strong~ (can be read as a cool article) The male protagonist has a male mother and a brother (a cold, long-haired golden-haired boy), a clingy brother (ps, no blood relationship), campus f4...] As the heir to the group, Qiu Yubai worked diligently late at night and worked overtime. Before he could retire and spend his life, he was suddenly struck to death by lightning. Then he was taken to a strange world by a small ball of light claiming to be the system, and he was told to just play the role of a passerby. Qiu Yubai thought to himself, I'm tired, that's it, just don't disturb me while I'm lying down. But who can tell me why these guys are targeting me? Am I not a passerby? ? ? As the eldest son of the Andres family, he suddenly found that his nominal sister seemed to be different. Have you been pretending? Haha, so interesting~ The second son of the Andres family has always hated this illegitimate daughter of unknown origin. Academy F4, the crown prince, the lord, the chief of the White Tower... Who are they? Why are peaceful days always disturbed by mice in the dark?