Crown of Nibelung focuses mainly on Leo, the second royal prince of Nohr. It is an adaptation of the game and follows the Revelation route. The Avatar is depicted in her female incarnation. It makes some references to other material related to Fire Emblem Fates, such as the drama CD. For example, it mentions the Clarkenstein villa within the imperial palace, where the Nohrian Royal Family officially resides.

The anthology features works by mangaka from "Ward" and "Comic Zero-Sum". A new volume is released every four months.VOLUME 1: SHITSUJI (BUTLER)1. Spider's Nest ~ Minekura Kazuya2. Nice to Meet You, Young Lady ~ Kouga Yun3. Holly Green and White Little Garden ~ Takayama Shinobu4. The Situation of Goshogawa Yuzuru's Magnificant Mansion Creation ~ Miyamoto Fukusuke5. Butler of Worry ~ Higashiyama Kazuko6. Elevenses ~ Mikanagi Touya7. The Incident of the Butler's Birthday Project ~ Saeki Yashirou8. Le Droit D' Aimer ~ Haibara Yaku9. Young Lady's Butler ~ Yoneyama Setsuko10. The Melancholy of the Irritable Boy and Butler ~ Kikuta Yui11. The Moon and the Visitor ~ Nanjou TsugumiVOLUME 2: REBEL AND PHANTOM THIEF1. CANDY ~ Haibara Yaku2. "...That Story." ~ Masaki Haruka3. FLIES ~ Minekura Kazuya4. Arabiana ~ Mizuhara Kenta5. The Ancient History of the Three Thieves ~ Takayama Shinobu6. The Adventure of Captain Arco Iris ~ Tsutsumi Shouko7. SKYHIGH TENSION ~ Fujimura Ayumi8. Mushroom and Kappa: Arcana compilation for thieves on business trips ~ Magami Guriko9. The Lonely Mountain Robber ~ Tachibana Ayun10. LANEKEEPER ~ Fujiwara Yuu11. Moonlight Honey ~ Shindou Arashi12. The Unlucky Pirate ~ Asada Yasuka13. Strobo Rider ~ Kouzuki Reo14. Moonlight Dance ~ Kouga YunVOLUME 3: PRINCE AND PRINCESS1. Prince of Stars ~ Minekura Kazuya2. Mushroom and Kappa: Arcana compilation for princes on business trips ~ Magami Guriko3. Flower King ~ Kouga Yun4. Rose Princess Destiny ~ Kinoshita Sakura5. The Window of Rain ~ Takayama Shinobu6. My Knight is a Princess ~ Kosugi Mayu7. The Beggar Princess ~ Ueda Shinshuu8. The Dawn Outside Heaven ~ D. Kissan9. Princess Academy ~ Mikawa Verno10. PRINCESESS ~ Kari Erika11. Our Majesty's Tactful Words ~ Kisaragi Yoshinori12. Heart-Racing Engagement Meeting ~ Saeki Yashirou13. Listen to the Song I Sing ~ Mizutani YuzuVOLUME 4: VAMPIRE1. The Vampire of the Sleeping Forest ~ Kinoshita Sakura2. Mushroom and Kappa: Arcana compilation for vampires on business trips. ~ Magami Guriko3. To Cross the River ~ Kouga Yun4. A Shower in the Sunshine ~ Omote Sora5. URBAN VAMPIRE ~ Bikke6. Sky Burial ~ Takayama Shinobu7. Today's Dining Table ~ Saeki Yashiro8. The Aegis of Time's Coffin ~ Yugyoji Tama9. Forest of Nobility ~ Kayase Shiki10. CHIYOSAMA! ~ Shindo Arashi11. Strigoi Kingdom ~ Serikawa Mame12. The truth of Catharsis ~ Inui Miku13. Blood Donation Advice ~ Igarashi Ran14. The Novice Vampire ~ Amamiya Azusa15. Gentle Temperature ~ Kisaragi YoshinoriVOLUME 5: JAPANESE STYLE / SAMURAI1. Last Night's Rain Lifts ~ Minekura Kazuya12. The Queen’s Dog ~ Araishi + Oshino13. Kakure Oni ~ Mikanagi Touya15. Miokuribana ~ Kikuta YuiVOLUME 6: SPECIAL FORCES / TEAMS2. Monach Sacred ~ SENO Tatsune & TAKAMIYA Aya7. Frightening Eccentric ~ Sakamaki Yukisato15. Twins Pocky ~ Serikawa Mame16. Pledge of the Ox ~ Kayase ShikiVOLUME 7: WIZARDS AND MAGICIANS2. Night bird ~ Kouzuki Reo3. Mushroom and Kappa - Magic Users’ Chapter ~ Magami Guriko4. good day for me ~ Omote Sora5. Love Coloured Glasses ~ Bikke6. The Kind Black Witch ~ Ueda Shinshuu7. The Magician and I ~ Mikawa Verno8. Kokonoe Kyuujutsu ~ Aoto Takane9. Forest’s Poison ~ Kumeta Natsuo10. The Witch and I ~ Saeki Yashiro11. Kashoku ~ Kayase Shiki12. Magical Girl Alice and Her Brother ~ Igarashi Ran13. Magic! ~ Mizuhara Kenta14.The Kind Magician and the Paper Bag Girl ~ Mizutani & Kaede15. Secret Service ~ Suzuki IchikoVOLUME 8: SHITSUJI 2 (BUTLER)5. Le Droit D'Aimer ~ Haibara Yaku [SS]VOLUME 9: TRANSFORMATION / PERSONIFICATION1. The Wolf and the 7 Baby Goats ~ Minekura Kazuya7. Little Heart ~ Ninagawa Tomo8. A Nameless Quality ~ Tokito Kanade12. Super Human Console ~ Shindo Arashi13.Private Solar System Academy ~ Sakura Maro14. My Blue Bicycle ~ Zekkyo15. Tique-tique ~ Mitsu Nanae16. The Crow and the Pomegranate ~ Yoshizawa TomoyaVOLUME 10: CONFLICTS / SECRET SOCIETIES11. A Promise ~ Seno Tatsune & Takamiya AyaVOLUME 11: TIME TRAVEL & TIME TRAVELERS1. A Watch Seller Travels Through Time ~ Takayama Shinobu2. The Classroom Where He Is ~ Kumeta Natsuo11. If Time... ~ Buchi KeikoVOLUME 12: DEVILS & DEMONS (Sequel)1. Demon’s Kiss ~ Inui Miku6. Wednesday Swing ~ SekkaArcana 13: Several Men and Love (Sequel)Arcana 14: Ninjas (Sequel)Arcana 15: School Uniform (Sequel)

In 19th Century England, during the Victorian Era, there is the Kingdom of Tarnina Ulaniborg. The Kingdom has a Royal Academy where Royalty and Commoners can study Astronomical Research in hopes of becoming a Royal Astronomer. Astel Paschalis attends the Royal Academy as a scholarship student with a certain hidden motive.

Leto is employed as an apprentice by the skilled mercenary Alpha, from the mercenary unit Boreas. He struggles to rid himself of his apprentice status and be accepted by Alpha. However, as a mercenary, many painful encounters and terrible experiences await him…

This is the spin-off of +C: Sword and Cornett

There was once a hero who vanquished the darkness of the land and liberated the people. He then built a kingdom, and had his descendants rule as kings. Although they had ruled the land for so many years, in reality, political power was being wielded solely by the aristocrats of each region. One day, this seemingly peaceful kingdom was disturbed by the mysterious death of the principal heir to the throne. The sequence of events that this assassination set into motion, would soon come to involve all of those with the right to become the next king...There's the spin- off: +C: Sword and Cornett Appendix