GB Travels Across the Stars, I Seem to Have Become a Heartthrob

[GB+heartthrob+multiple male protagonists] When he woke up, Ruan Lisheng traveled through time. This was an interstellar era. Everything was new and interesting. It seemed pretty good? But here comes the bad news. The world is so dangerous and my life is at risk! But, I, Ruan Lisheng, never admit defeat! What about the interstellar age? I will definitely become the star of this era! Adopted brother? Childhood sweetheart? Fiancé? A close friend? Master? Or an old enemy? … "I don't want to be just your master..." "Brother? But I..." "Let me be the sharpest blade in your hand..." "It was you who saved me from the abyss time and time again..." "Don't leave me again..." (The introduction is incompetent, please move to the main text. The author has something to say in the first chapter.)