Why Does This Otome Game Have a Combat System?

Currently writing: The All-Language Sorcerer Blurb: [In this world, you are a sorcerer by birth. You were born into: A: A wealthy and powerful clan B: An ordinary family] The player wants wealth and power! [You were born into a wealthy and powerful clan. From birth, you: A: Possess an overwhelmingly powerful personal talent that earns everyone's respect B: Possess the power to sacrifice yourself to save the jujutsu world] The player is a staunch egoist! [You possess an overwhelmingly powerful innate technique and have been the center of attention since birth. In your generation, there's another child born with power equal to yours. You choose: A: Grow up with him as childhood sweethearts and become engaged B: Never meet him, but hear about each other's exploits almost every day and regard him as a rival you must defeat] A rival is a rival... There's no way a rival could become a wif... [Your "rival" chooses to study at Jujutsu High, where he'll meet his lifelong best friend and experience thrilling, life-or-death trials. You choose: A: Enroll in the same year as him B: Accept your clan's training and hone your strength] Mandatory schooling is a must! The player becomes the young lady of the Zenin clan, possessing the Ten Shadows Technique, only to be told there can only be one Ten Shadows user of each generation. And that chosen one is! Of course it isn't the player! It's Megumi! So the player is a knockoff! The Ten Shadows Technique is only a limited-time trial. #Not happy!! Is your classmate the strongest sorcerer? Then how about trying out the player's perfect dodge? Is your enemy a special-grade cursed spirit? Then how about seeing the player's basic attacks always deal critical hits? An enemy you can't beat has appeared? The player worked so hard to level up just for this day! Domain Expansion: [View Affection] Within the domain, the player's card attack power increases by 300%, while all stats of enemies who harbor ill will toward the player decrease by 700%. How rude. Whether you're playing an adventure game or a game about conquering the world doesn't matter. I'm playing an otome game! If you don't love the player, you die! Reader's guide: 1. This story saves every good person who gets a bad ending in the original. It does not endorse any actions that harm the original's good characters (emotional manipulation doesn't count >.<). 2. The story is as cold toward villains as winter. If you're rooting for a villain, keep reading at your own risk. You'll only have yourself to blame if you get upset. 3. The protagonist, as the "player," will be the strongest, but won't become the strongest by stripping original characters of their abilities. 4. There will be a happy ending for everyone. I want a happy ending, and I'll stop at nothing to get one. 5. (Important!!!) This is an experimental work. It may have OOC characters, poor writing, illogical plot points, and other major flaws. Please enjoy it with your brain switched off. If you can't keep reading, mark it "Not interested." No writing advice, please. (If you like it, keep reading. If you don't, pick another book. There are so many Jujutsu Kaisen fanfics, you're bound to find one you like.) Theme: Love and peace