- L-grade NEW character "Lucifer(Student)" Chance-Up Summon
- New Event Story "The Sweetest Test in the World"
- Limited-time Exchange Shop and more!
- Bug fixed

- L-grade NEW character "Lucifer(Student)" Chance-Up Summon
- New Event Story "The Sweetest Test in the World"
- Limited-time Exchange Shop and more!
- Bug fixed

- Please join us in celebrating Belzebub's birthday!
- L-grade NEW character "Leviathan(OL)" Chance-Up Summon
- New Event Story "Devil Wears an OL Look"
- Guess who the little devil is that showed up on April Fools' Day!
- Bug fixed

- Please join us in celebrating Belzebub's birthday!
- L-grade NEW character "Leviathan(OL)" Chance-Up Summon
- New Event Story "Devil Wears an OL Look"
- Guess who the little devil is that showed up on April Fools' Day!
- Bug fixed

- L-grade character "Lucifer(Butler)" Chance-Up Summon re-run!
- Limited exchange shop Open!
- Bug fixed

- L-grade NEW character "Gamigin(Panchira)" Chance-Up Summon
- New Event Story "A Baptism for a Nameless Devil"
- Bug fixed

- Celebrate Valentine’s Day with exclusive event!
- L-grade NEW character "Satan(Cat)" Chance-Up Summon
- New Evolution Reward available for "Satan(Selfie)"
- Bug fixed

- L-grade character "Mammon(Shower)" Chance-Up Summon!
- New Evolution Reward available for "Mammon(Selfie)"
- Hell Oh! Talk update (7th-day daily chat added)
- Bug fixed

- New L-grade character "Gabriel(Attacker)" Nightmare Pass & Chance-Up Summon
- New Sub Story "One who walks both Heaven and Hell"
- Bug fixed

- New L-grade character "Asmodeus(Wedding)" Nightmare Pass & Chance-Up Summon
- New Sub Story "The Christmas Cake and Saint Milk Messiah"
- Christmas limited Exchange Shop & 7-day Login Bonus and more!
- Bug fixed

- New L-grade character "Raphael(Attacker)" Nightmare Pass & Chance-Up Summon
- Idle animation added for Mammon
- Bug fixed

- L-grade character "Juno P. Cruel Orgasm 666"(a.k.a Ppyong) Nightmare Pass & Chance-Up Summon
- Bug fixed

Join us in celebrating the 2nd anniversary of "What in Hell is Bad?"!
- New L-grade character "Lucifer(Bloodshed)" Nightmare Pass & Chance-Up Summon
- Bug fixed

Join us in celebrating the 2nd anniversary of "What in Hell is Bad?"!
- 2nd Anniversary event now available!
- New L-grade character "Leviathan(School Uniform)" Nightmare Pass & Chance-Up Summon
- New Mini game "Jormungandr Game" released

- L-Grade Leviathan(Butt) Nightmare Pass & Chance-Up Summon
- Main Story Chapter 8 Update!
- Level cap for devils has been expanded (90 → 99)

- L Grade Satan(Humanization) Chance-up Summon

- S+ Grade Gabriel (Beach) Nightmare Pass & Chance-up Summon
- New Event Story (The Man Standing at the Boundary Between The Sky and Sea (Part 2))

- L-grade Beelzebub (Pirate) Nightmare Pass & Chance-up Summon
- L-Grade Mammon (Pirate) Chance-UP Summon
- New A and B-Grade Characters Added.
- Minor bugs fixed

- Opening of Purson's Anchor Exchange Shop!
- Lobby Icon Feature Improvement
- New Event Story (The Man Standing at the Boundary Between The Sky and Sea (Part 1))

- Beelzebub (Five Deadly Sins) Rerun Summon Open
- A+ Vassago Added to Summon Pool
- Mini Event Story ( Harumon's Diary )
- Minor bugs fixed

- L-grade Leviathan (Victory) Nightmare Pass & Chance-up Summon now available!
- Chatroom Feature Improvements
- Draw History Feature Added
- Minor bugs fixed

- L-grade new character Asmodeus(Teacher) Chance-up Summon
- S-grade new character Agares Chance-up Summon
- Belphegor’s Birthday Login Event
- Belphegor’s Birthday Chat Message
- Niflheim Chance-UP Summon
- Special Currency Collection Event ( Royal Horn Ring )
- New Event Story Released (The Stolen Throne and the Forgotten Tale)
- Increased Plays for Realm of the Seraphim
- Minor bugs fixed

- L-grade Belphegor(Attacker) Nightmare Pass & Chance-up Summon now available!
- Monthly Solomon's Lesser Key has been added to the Nightmare Pancake Shop
- Summon Balance Adjustment for S+ Grade Character/Artifact
- Chatroom Feature Improvements
- Addition of UI Hiding Feature
- Artifact enhancing UI/UX Improvements
- Minor bugs fixed

- L-grade new character Leviathan (Maid) Chance-up Summon
- Minor bugs fixed

- L-grade new character Lucifer(Butler) Chance-up Summon & Nightmare Pass released!
- Minor bugs fixed

- L-grade new character Asmodeus(Selfie) Chance-up Summon
- S-grade new character Zepar Chance-up Summon
- April Fools' day Event Story available!
- Soft Tail Exchange is opened for celebrating April Fools' day Event
- Minor bugs fixed

- New character Satan/Mammon Nightmare Pass & Chance-up Summon released!
- 'Friends' feature updated
- Minor bugs fixed

- New character S+ grade Dantalian & Ronove (Prisoners) Chance-up Summon now available!
- Minor bugs fixed