Which Romance Manga Has The Most Satisfying Slow-Burn Relationship?

-WARNING 20+ ONLY CAN READ THIS!-If you are not a fan of MATURE ROMANCE DONT READ THIS! This story is completion of different types of romance, if you are interested you can read this!

His smoldering golden gaze struck sparks from hers. “I wanted you the first time I saw you nearly three years ago. Now I want you even more.” “Me too... I've been waiting for this for so long… Three years might seem an eternity sometimes. Touch me, Diego. Please,” she mumbled shakily. “I will, 'cariño'… And I won’t stop. Not until you beg me to.” "Then... Don’t you ever stop…” she whispered urgently, shifting her hips in a restive movement against the sheet, wildly, wickedly conscious of the growing ache at the very heart of her. “Never…” "Is this a promise?" "A certainty." For sexy, mysterious Mexican aristocrat Diego Francisco Martinez del Río, Duque de Altamira, Jacqueline Maxwell was a gypsy, a weirdo living in awful conditions. And she was raising his orphaned baby niece in… a trailer! So unacceptable! Since she wasn’t giving up on little Azura, and his niece was very fond of her aunt, Diego offered to marry Jacqueline and raise the little girl together. Yes, she was poor but she was a real beauty, and with a little help, Jacqueline might become a perfect wife for a Duque. Graceful, beautiful... delightful, even. Jacqueline Maxwell knew Diego and his kind all too well. He was as stunning and charming as the devil himself, but twice as ruthless and heartless. He was just a playboy interested in one thing and one thing only. And it had nothing to do with little Azura. Still, accepting his proposal of a marriage of convenience might be the end to all her worries regarding the little girl left in her care by Alyssa, her sister...

Hiraya is an intelligent and independent girl who is considerate of others, but she has an inferiority complex. She does not accept her appearance, she feels like it is disconnected from her body. Hiraya works in a company owned by Tanashiri's dad, and Tanashiri is a rude and arrogant guy with an obsessive-compulsive disorder. Contrary to popular belief, he just hides behind that mask-there is more to it than people see on the surface. He also does not feel connected to his existence. Little did they know that the past explains why they behave that way.

At my graduation ceremony, I finally gathered the courage to confess my feelings to my longtime crush. But before I could, I was hit by a car. When I opened my eyes again, he was standing right in front of me with a frigid glare. "You're awake? Perfect. Then let's discuss our divorce." I blinked at him, completely dazed. Divorce? Wait—what? I hadn't even confessed yet. How on earth had this turned into a divorce?

He is loathsome, arrogant and handsome doctor with uncouth mouth. She is a simple sales girl. Being straightforward and brave, she shamelessly pursued him, sending him gifts, meals, flowers and tried to get close to him. She was humiliated when his staff gossiped about her and she retreated. Then he rejected her and told her they could only be friends. She tried her best to avoid him but no matter how much she tried they frequently cross paths. Suddenly one day he told her. "Be my girlfriend!" What a mess!

After transmigrating into a novel, I realized the heroine and I had the exact same name. Naturally, I thought I had transmigrated into the female lead. So I marched straight to the man who was still a broke nobody at the time, threw all caution to the wind, and pounced on him like I had plot armor protecting me. He even glared at me with red eyes and told me he hated me. I honestly thought he was just into the whole push-and-pull thing. Everything shattered when the real heroine showed up and I finally understood one thing. He actually hated me. Heartbroken, I packed my bags and got ready to disappear. The next second, he pinned me against the wall. "Where are you going? Already bored of me, sweetheart?"