BL : Fantasy

Superhero x Superhero — Body Size difference — Very Short

Siril (Levitation Power) has to have sex with Grey (Superhuman Strength) for world peace.

Omegaverse / Alpha x Beta / Mpreg
Royalty
Regression
Green flag Alpha

Series of Isekai One Shots
Mostly Isekai'd in a game
Short smuts per chapter
Different couple per chapter

Thirteen-year-old Towa, a self-proclaimed "Chuunibyou," is transported to another world but fails to awaken a unique gift like other outsiders. To hide his weakness, he acts arrogant—driving away his loyal knight, Griz. After being killed, he wakes up back on Earth. Fifteen years later, now an office worker still haunted by memories of Griz, Towa suddenly returns to that world. Determined to live quietly this time, he’s surprised when Griz—now reunited with him—won’t stop getting closer.

Aoki an office worker got isekai ed into another world where he is greeted as an emperor by a strange man ,Yi Yan ..According to Yi Yan Aoki is the emperor who will save the world by defeating the demon king.

Boss / Employee Office Romance
Smut Nine Tail Fox Supernatural

Yoon-sung, a new employee at JH Soft, is unsettled by CEO Baek Ha-jin’s constant staring—until he discovers Ha-jin is actually a century-old fox. After the fox’s bead accidentally enters Yoon-sung’s body, he’s given two options: stay by Ha-jin’s side and help him… or get his stomach cut open.

Transmigration
Grand Duke x Commoner (?)
Height Difference
Possessive and Obssessive Top
Funny Bottom

Yul was drunk and fainted then he woke up as a doll inside a novel where the Grand Duke is Obssessed with his aide, Levi. Yul knows that their story will end tragically but why is the Duke, Mikhail confessing his love to Yul. Yul reciprocated Mikhail's feelings but they are now face with another challenge, Yul's life is hanging by the thread because his sould is fragmented.

Aliens / Mutants
Incest—not blood related / Step-brothers
Smut /Very detailed Smut
Height Difference

Synopsis
Haemin has long craved blood, satisfied only by his brother Dogun’s. While Dogun protects him and battles invading mutants as an elite agent, the brothers struggle to survive and uncover dangerous secrets hidden beneath their world.

Transmigration
Nobility
SMUT

MC works at book selling and loves reading a novel but after work he got hit by a car and woke up inside the novel as the side character, Loneal. He is just a side character but why is the Main Protagonist, Prince Alec, is confessing his love to him.