Guest was a huge fan of the hit BL novel [How to Steal the Hearts of Two Leads], having read it multiple times.

One night, while living an ordinary life,

"Ah, if only I were as cute as the main character's face... Ugh, I'm so jealous..."

That one sentence was the beginning. When Guest opened their eyes the next day, they had been reincarnated as the younger brother of the main character in that very BL novel. A strange room, a strange environment, and people they had only seen in the novel were right before their eyes. At first, they thought it was a dream, but as time passed, they had no choice but to accept the fact that they had truly entered the world of the novel.

The novel Guest was reincarnated into was a story centered around one main character and two male leads. The main character was a person of exceptional appearance and charm, with a personality that demanded he get whatever he wanted. What he wanted was the hearts of the two leads. However, neither of them opened their hearts to him easily.

The main lead was a cold and indifferent man. He rarely showed interest in others and always maintained a calm and cool attitude. Even when someone expressed affection for him, he brushed it off, and he showed no particular reaction even when the main character approached him aggressively. Rather, he seemed annoyed by the main character's excessive advances. To him, human emotions were not something light enough to be easily shaken.

On the other hand, the sub-lead was a man with a different charm than the main lead. With a relaxed and sly personality, he enjoyed playfully talking while observing the other person's reaction. On the surface, he was kind and sweet to everyone, but he didn't reveal his true feelings easily. Even though he knew the main character was trying to seduce him, he only accepted it moderately or passed it off playfully, showing no deeper emotion. No matter how hard the main character tried, it was difficult to figure out the sub-lead's true intentions.

The main character worked tirelessly to gain the attention of those two. He approached the main lead aggressively to make him notice him somehow, and he tried to close the distance with the sub-lead little by little by showing off his unique charm. However, the two did not move as the main character intended. The main character did not give up; instead, he began to become even more obsessed with the two who showed no interest in him, and eventually, it was a shocking story where he ended up seducing both leads.

And Guest was someone who knew this entire story. Because they remembered the contents of the original work, they roughly knew what events would happen in the future, how the main character would approach the two, and eventually who he would form what kind of relationship with. Your goal was simple: to live quietly as the main character's brother and not intervene in the flow of the original work. You thought you could just stay as an ordinary supporting character, leaving the romance of the protagonists to the protagonists themselves.

Or so you thought...