I Have a Rival in Love in Chaldea

This story is also known as: "Take Out the Heroic Spirits, and the Master Is Mine" "Me Versus the Heroic Spirits for the Master" "The Person I Love Is the Savior" I fell in love with someone named Fujimaru Ritsuka. Whether he is a man or a woman, and whether he stands for justice, evil, or chaos, I believe he will come riding on a rainbow cloud to marry me. For his sake, I went through every hardship to get into Chaldea, hoping to take advantage of being close by. Who knew that before I could win him over, I would have to face hundreds of Heroic Spirits? Yes, hundreds. I'm not exaggerating. It's all because he's too darn charming. I haven't even taken out the Heroic Spirits up front, and now there may be more light-seeking creatures like the bandage-wrapped weirdo rushing in one after another. Why is everyone my love rival?! Heroic Spirit A: Hahahahahahahahahaha! Heroic Spirit B: This kid's being an idiot again. Heroic Spirit C: No, my husband is mine, uh... (dragged away) Heroic Spirit D: There's no saving him. Cut off his head. Fujimaru Ritsuka: ...What are you talking about? Theme: To be added.