| Until the Fake Ideal Type Becomes Real | Web Novel | korean | 4.3 |
| Until the Lonely King and the Sunny Bride become the Best Couple | Light Novel | japanese | 4.5 |
| Until the Saint Loves Back | Web Novel | japanese | 4.1 |
| Untouchable | Web Novel | korean | 3.8 |
| Untouchable Lady | Web Novel | korean | 4.2 |
| Untypical Divorce | Web Novel | chinese | 3.3 |
| Unusual | Web Novel | korean | 3.2 |
| Unveiling Her Innocence: Drive Me Wild | Web Novel | chinese | 2.9 |
| Unworthy Rich Miss | Web Novel | chinese | 3.8 |
| Unyielding Spring Mountains | Web Novel | chinese | 3.5 |
| Unyielding Time | Web Novel | chinese | 4.0 |
| Upgrade Specialist in Another World | Web Novel | chinese | 3.5 |
| Upki Girl | Web Novel | korean | 3.9 |
| Upon Discovering a Wall B**t, I Went Ahead and Ej****ulated Inside, After Which I Received a Lecture | Web Novel | japanese | 3.0 |
| Upon Meeting Water | Web Novel | chinese | 4.1 |
| Upon Returning Home As A Military Major General, I Was Told To Attend School, Even Though It’s Quite Late Now | Web Novel | japanese | 3.0 |
| Upon Waking Up, I Found Myself Transformed Into a Certain Individual Named Taro Urashima. As I Arrived at Ryugu Castle Accompanied by the Turtle I Had Rescued, to My Astonishment, My Supposedly Deceased Ex-girlfriend Was Present! | Web Novel | japanese | 4.0 |
| Upstart Pastry Chef ~Territory Management of a Genius Pâtisserie~ | Web Novel | japanese | 4.1 |
| Urban Banished Immortal | Web Novel | chinese | 3.8 |
| Urban Carefree Immortal Emperor | Web Novel | chinese | 2.7 |
| Urban Legend Demolition Office | Web Novel | chinese | 4.4 |
| Urban Martial Arts System | Web Novel | chinese | 2.8 |
| Urban Strengthening System | Web Novel | chinese | 3.3 |
| Urban Super Almighty Student | Web Novel | chinese | 2.1 |
| Urban Tales of Demons and Spirits | Web Novel | chinese | 3.9 |
| Urban: I Got a Space-Time Mailbox and I Can Write to My Past Self | Web Novel | chinese | 3.3 |
| Urban: Public Welfare Reward of 1 Billion Yuan | Web Novel | chinese | 2.6 |
| Urgalia Saga: The Reincarnated Emperor Enjoys The Puppet Life | Web Novel | japanese | 3.0 |
| Usahime Karin Becomes a VTuber! | Web Novel | korean | 3.9 |
| Useless Superpowers Become S-Class If You Don’t Use Them by the Book | Web Novel | chinese | 2.4 |
| Ushering In The Internet Era In The Magical World | Web Novel | chinese | 3.6 |
| Ushiro no Bishojo ga, Boku wo Tsukande Hanasanai | Web Novel | japanese | 4.1 |
| Using Gacha to Increase My Companions and to Create the Strongest Girls’ Army Corps | Web Novel | japanese | 3.7 |
| Using Marriage as Bait | Web Novel | chinese | 3.4 |
| Using My Common Sense Altering Ability I’ll F**k and Make a Mess of Women In A Different World | Web Novel | japanese | 2.8 |
| Using My God Skill “Breathing” to Level Up, I Will Challenge the Dungeon of the Gods | Web Novel | japanese | 3.4 |
| Using a Wok to Reorganize Life and Fly to Immortality | Web Novel | chinese | 4.2 |
| Using the Faulty Skill, “Escape,” I Strive to Become the Strongest One Starting from the Utmost Low End of Ability Levels | Web Novel | japanese | 3.5 |
| Using the Hero Who Likes Me Too Much, I Intended To Live Longer in This Life, but Maybe I Failed Again | Web Novel | japanese | 3.8 |
| Using the Wisdom from My Isekai Reincarnation Only for S*x | Web Novel | japanese | 3.5 |
| Usotsuki Mi-kun to Kowareta Ma-chan | Light Novel | japanese | 4.4 |
| Usotsuki Senki, Meikyu wo Yuku | Web Novel | japanese | 3.5 |
| Utsukushii Kare | Light Novel | japanese | 4.1 |
| Utsukushii Koto | Light Novel | japanese | 4.3 |
| Utsuro no Hako to Zero no Maria | Light Novel | japanese | 4.7 |