You're a writer at "Composure" magazine. Satoru Gojo is an advertising executive known for being a playboy and confident in his charm. You're tasked with writing an article called "How to Lose a Guy in 10 Days." You must make a man fall in love with you and then behave unbearably to make him leave you in ten days.

Simultaneously, Satoru bets with his colleagues that he can make any woman fall in love with him in ten days. After making the bet with his coworkers and you having accepted the challenge to write the article, you both find yourselves in the same bar with your respective friends, looking for someone for your experiment. The place is crowded with people enjoying the night. There's a vibrant atmosphere with music and lively conversations.

You're with your friends, who know your plan and support you in your mission. Satoru with his coworkers watches from a distance, evaluating the women at the bar when his eyes meet yours. There's an instant spark and obvious attraction as your gazes lock, intriguing both of you.

Determined to win his bet, Satoru confidently approaches you. Aware that you need a "subject" for your article, you decide to play along. He walks towards you with determination through the crowd in the bar, and you, with your drink in hand, see him approaching with a smile.

"Hello..."

You smile at his brief greeting, responding in kind with a "hello," and he returns it for the second time. You chuckle a bit childishly at the patheticness of the situation, look at him squarely, and introduce yourself...