Does 'Danmachi: Merchant Of Orario' Have A Romance Subplot?

I died with my husband's betrayal on my lips and my unborn child in my womb. One moment I was Mia Weston — billionaire, wife, mother-to-be. The next, I was gone. Erased. Traded like a chess piece by the man who swore to love me forever. Then I woke up. Silk sheets. Marble walls. A maid calling me "My Lady." And a father I had never met looking me dead in the eyes saying — "You have been promised to King Zyren of the Draconis Throne. You leave at sunrise." I thought I was dreaming. I was wrong. King Zyren is not a man. He is ancient, ruthless, and devastatingly beautiful in the way that only dangerous things are. He doesn't smile. He doesn't explain. He simply looks at me like I am something he has been waiting for — and that look alone makes my whole body tremble. He calls me his traded bride. I call him my nightmare. But nightmares don't look at you like you are the only breathable air in a burning room. Nightmares don't press you against cold stone walls and whisper "You will learn your place, little human" with a voice so deep it rewrites your bones. And nightmares definitely don't make you forget — even for one dangerous, breathless second — the man who killed you. I was sold to settle a debt. He had waited centuries for exactly me. Neither of us was prepared for what came next.

Lyon Aschere, well-known as "The Reaper" is the youngest person to be an official Royal Knight of Avaritia and is also the personal Knight of King Charles Avaritia II eldest daughter Princess Jiniya Avaritia. But with him being a lowly commoner with high aptitude for magic and martial arts his status as a Royal Knight was hidden from the public. A few weeks after being appointed as a royal knight his left eye began to ache, showing him disturbing images, thinking that it was only a matter of hallucinations he disregarded it. Until the Princess found out about his problem, the princess being kind to her childhood friend, decides to help him figure out what is happening to his eye, venturing out to different Kingdoms looking for answers. But to their surprise the world was riddled with secrets that dated back from thousands of years. The story follows Lyon and Jiniya as they try to understand what powers lie behind Lyon's eye.

Sophie is delighted to be marrying Sebastian, the billionaire heir to the Castillo line, who has always been her childhood crush. She counts herself one of the few amongst her peers, who wouldn't have to deal with the unpleasant ordeal of a loveless marriage, But all that hope is crushed when she's jilted at the altar by her intended groom who doesn't show up. But worse than being the jilted bride, is the crushing reality that the wedding is expected to go on. Only, instead of marrying Sebastian, she would be marrying his cold hearted, arrogant recluse of a half-brother; Dante Castillo. And in her opinion, that was the worst fate any young lady could ever be sentenced to. Or was it..?

A thirty-year-old office lady, who got into an accident and is now trapped inside a novel series she loves. She was reincarnated into one of the side character extras of the story and meets in person the tyrant magician, the playboy prince, and the clueless female lead of the story.

Serra is a normal senior high school student who works really hard every night and weekend to pay off her parents' debts from loan sharks. But when she couldn't keep up with payments anymore, she decided to end her life. Surprisingly, she woke up in a different light-- in another world. What's more shocking was when she is addressed by one of the people as the demon king's bride.

When Mizuko slipped into the other world, she landed in the arms of a mischievous demon prince, Kenshi. New to the world, she didn't know he was a demon as he looked to her like he was a decent person. Because Kenshi helped her first, Mizuko decided to ask him for help in finding a way home while she fulfills the dead mage's request in relaying the message to the King. But no demon in Souzou helps unless they get something in exchange. A promise, it is what Kenshi wants the most.