What Are The Best Strategies In 'NEET Receives A Dating Sim System'?

I transmigrated into a dating-sim otome game where I was supposed to romance a soft, fragile male lead. I had finally pushed him onto the bed and was just about to make my move when the long-missing system finally popped back online. [Host, I sent you to the wrong game. This is a horror game.] [The man you’re bullying right now is the horror game final boss.] I lifted my head and met a pair of blood-red eyes staring straight at me. My smile froze. “Um… you look a little tired. Maybe we should… continue this another day?” He smiled back, calm and terrifying. “I’m not tired. Go on.”

I caught my fiancé and the fake heiress in the act. They didn’t show an ounce of guilt; the heiress even laughed at me, full of mockery. “What I have isn’t just this,” she said. “Last year, I was bound to the Score-Boosting System. No matter what score you got on the SAT, I was always a little higher. Didn’t you notice?” “Natalie,” Vivian sneered, “as long as I’m around, you’ll never get ahead of me!” Anger surged through me. I wanted to take them down with me, but then a gas explosion struck, and the three of us were reborn at the same moment. I was welcomed back into the Sullivan family. Grandpa Sullivan declared that whoever became the SAT champion would inherit the family fortune. The fake heiress boasted proudly, “Natalie, don’t even try. You’ll always be my stepping stone!” I smiled. “If you’re always a little ahead of me, fine. I’ll just set the highest score in history.”

Sean Parker's first love, Thea Smith, is back. The comments flood in, as everyone is waiting for me to frame her and then get brutally exposed. But the system I'm bound to is an angst system. So, I can only earn points by suffering. Only with full points can I win ten billion dollars. I'm scratching my head as to how to rack up points when Thea suddenly cuts her own face with a knife. She points at me accusingly and cry, "Why did you ruin my face?" I'm overjoyed. It's finally here—this is the part where I get tormented! But Sean points to the corner coldly. "The surveillance camera is on. Do you want me to replay it?" The air freezes, and I see a line of text appear above her head. It reads, [Angst Points: +25] Countless comments pour in like a frenzy. "Holy crap! Is Thea also bound to a system?" "No way. Are both the evil supporting character and the scheming female lead players who are farming points?" I look at the 25 points Thea scored so easily and think about the 15 points I've painfully accumulated over six years. I clench my fists. This isn't some tragic romance story. It's clearly a cutthroat competition between players! In that case, it is time for me to fight back.

After I confessed to my childhood crush, he smirked and said, "If you can get that loser to drink from the same bottle you did, I'll date you." Seriously? Was I really reborn fifteen years ago? I raced over to Noah—top of the class and hot as hell—and dropped the water bottle on his desk in front of everyone. He clocked the lipstick stain, face turning crimson. Future business mogul? Right now, he looked like some poor kid waiting to get crushed. I nudged the bottle closer. "Using that genius brain to collect bottles for cash? Kinda tragic. Be my private tutor instead." He might be broke, but lucky for him, I've got money to burn.

I'm a succubus who gathers energy by clearing System missions, adept at the game of love. One day, right after completing a honey trap mission, I was sent to a SSS-level horror game at the very next second. The boss was invincible and bloodthirsty, watching coolly as other players rested in pieces before turning to the rest of us. "Now choose—how do you want to die?" While other players were wetting their pants and trying to find a loophole to survive, I picked up on something different. A handsome, powerful target beneath that cold, horrific exterior. Hence, when he reached me, I smiled enigmatically as I told him my wish. "I wish to be conquered by a truly powerful Entity, dominated from soul to flesh, and to die in pure ecstasy." I watched him pause in shock and added, "Oh, and you must do it yourself."

In a world with machines and angels, the main character has to become the strongest to avoid getting killed and discarded.