The World of Otome Games is Tough For Mobs - Volume 6, Chapter 2 – Serge

Gazing at the Starbucks café at the airports had become a ritual for her. A desperate attempt as she hoped against hope to see him again, probably get one more chance to kiss him again.

Looking at the store all lost, she walked ahead, but stumbled and bumped against someone.

The cup of coffee that he had in his hand spilled all over just like the first time when she had met him.

“Jesus Christ”, he muttered.

The moment she heard the voice she looked up and saw his face. It was the same face that had promised to stay next to her, till death did them apart.

Tears flooded her eyes and she could barely speak, “I knew you would come back for me Raymond”. She raised herself on her toes in an attempt to kiss him, but he blocked her lips with his palm.

“Whoa, whoa, Miss !!! I guess you have mistaken me for someone else.”

“What are you saying, Raymond? It's me, your Akira. The love of your life, your fiancée,” she said and stretched her hand showing the ring on her finger.

He stared at the ring for quite some time and then looked at her face apologetically and said,

“Miss please, I am already a married man.”

And then he silently walked away.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

Residing within the dense forest in Nore are the beautiful elves of Elune Forest. After the young elves began to be hunted by the humans to become slaves, the Queen of Elune decided that young elves could not leave the forest until after their adult ceremony at fifty years old. When Hai’an’s ceremony finally arrived, he was excited to be able to finally travel away from his home and see everything the world had to offer. However, he got more than he bargained for.

What was supposed to be a simple ceremony turned into Hai’an transmigating to the body of… a plant?!

Stuck as a small sapling called Shaking Grass, Hai’an was bought and given as a birthday gift to a retired Starfleet Marshal named Auguste.

After retiring due to political conflict, Auguste spends his time trying to find more of his missing race, the ancient dragons. Unexpectedly receiving Hai’an, Auguste believes him to be nothing more than a rare, exotic plant. To his surprise, he finds that this little plant is intelligent and learns more and more every day.

How will this stoic, unfeeling dragon fall in love with the little transmigrated elf who lost his body?

- Description from novelupdates