Three Hundred Years of Longing: Bu Jian Shang Xian San Bai Nian
Three Hundred Years of Longing: Bu Jian Shang Xian San Bai Nian
TAGS
Wiki
xianxia
cultivation
amnesia
strong pairing
mystery
reunion
danmei
novel
A feared demon awakens after years of imprisonment and crosses paths with a long-lost immortal, uncovering a past that neither of them fully remembers.
Chinese Title: 不见上仙三百年
Pinyin: Bù Jiàn Shàng Xiān Sān Bǎi Nián
Common English Title: Three Hundred Years of Longing / Unseen Immortal of Three Hundred Years
❤️ Main Relationship
Xiao Fuxuan (萧复暄) × Wu Xingxue (乌行雪)
✨ Introduction
"Three Hundred Years of Longing" is a xianxia danmei novel by Mu Suli that follows the story of Tian Su Shangxian Xiao Fuxuan and Zhaoye City Lord Wu Xingxue. The novel centers on Wu Xingxue's journey to recover his lost memories and true identity after awakening from a twenty-five-year imprisonment in Canglang Beiyu, believing himself to be a transmigrated mortal noble.
The narrative unfolds through dual timelines, alternating between present events and flashbacks spanning three hundred years. The relationship between the cold, disciplined immortal Xiao Fuxuan and the once-immortal-turned-demon-lord Wu Xingxue develops as they travel together, uncovering layers of past connections, betrayals, and a deep bond that transcends their opposing positions in the celestial and demon realms.
🌏 Background
The story is set in a world where a divine tree governs the cycle of life and death - each blossom represents a human birth, and each withering flower signifies a death. This sacred tree eventually gave rise to two entities: the emotionless Lingtai Heavenly Way and the compassionate Shangxian Lingwang (Spirit King). Wu Xingxue was originally the Spirit King, the earliest immortal who loved humanity and reveled in mortal festivities, but he descended into demonhood to become the Lord of Zhaoye City, the demon capital.
After the celestial realm's collapse and the extinction of most immortals, Xiao Fuxuan took Wu Xingxue to his domain of Canglang Beiyu, where they slept for twenty-five years. Upon awakening, Wu Xingxue finds himself with no memory of his true identity, believing he is a mortal noble who has possessed a demon lord's body. Together with Xiao Fuxuan, they embark on a journey to uncover the secrets hidden by the Heavenly Way and restore balance to the world.
🎭 Themes & Tone
- Memory and identity reconstruction
- Redemption and moral ambiguity
- Fate and predestined connections
- Sacrifice and responsibility
- The nature of divinity versus humanity
Tone: Poetic, melancholic with moments of warmth, layered with mystery and emotional depth
👥 Main Characters
- 乌行雪 (Wu Xingxue) - Former Spirit King turned demon lord of Zhaoye City, suffers from amnesia and believes he is a transmigrated mortal, characteristically lively and human-loving despite his demon status
- 萧复暄 (Xiao Fuxuan) - Tian Su Shangxian who governs punishment and pardon, one of only two immortals summoned by heaven, cold and silent exterior with deep affection for Wu Xingxue
- Supporting cast includes demon subordinates, celestial beings, and various mortals encountered during their journey
✨ Iconic Quote
- 乌行雪: "萧复暄，既然你不信我，那刚刚为何要救我这个魔头" (Wu Xingxue: Xiao Fuxuan, since you don't believe me, why did you save me, this demon lord, just now?)
- 萧复暄: "乌行雪，我昨晚梦见你了" (Xiao Fuxuan: Wu Xingxue, I dreamed of you last night.)
- 乌行雪: "萧复暄，等下一个人间三月，一起看落花" (Xiao Fuxuan, when the next March in the mortal realm comes, let's watch the falling flowers together)
- "因果之下横生因果, 人间之外又有人间" (Under cause and effect, new causes and effects arise; beyond the mortal realm, there are other mortal realms)
- "从此高山流水清风明月，都只相逢于这人世间" (From then on, high mountains, flowing water, gentle breeze, and bright moon only meet in this mortal world)
🎬 Adaptations
- Audio Drama: Completed Season 1, Season 2 announced for Spring 2025, featuring voice actors Zhang Fuzheng as Xiao Fuxuan and Deng Youxi as Wu Xingxue
- Manhua: Serialized since February 2023 with beautiful art style
- Live-action: Unknown
🔥 Why It's Popular
- Complex, multi-layered plot with "mystery within mystery" structure that keeps readers engaged
- Well-developed relationship between the cold immortal and lively demon lord with deep historical connections
- Rich worldbuilding centered around the divine tree mythology and celestial hierarchy
- Mu Suli's signature writing style combining poetic prose with emotional depth
- Appeals to readers who enjoy intricate xianxia settings with memory loss tropes and rediscovery narratives
📚 Reader Notes
Beginner-friendly: ★★★☆☆
Angst level: ★★★★☆
Plot complexity: Very High
Romance visibility: Medium
Mystery focus: Very High
Recommended for readers who enjoy intricate xianxia worldbuilding with memory loss tropes and slow-burn rediscovery narratives.
✍️ Author
木苏里 (Mu Suli) Bestselling author known complex narrative structures and emotionally layered character relationships.
🔗 Useful Links (Official)
Original Chinese Novel: JJWXC
Official English Novel: Seven Seas Entertainment
Chinese Audio Drama: Maoer FM (Missevan)
🌌 Similar IPs
If you like Three Hundred Years Without Seeing the Immortal, you may also enjoy:
Comments (0)
WIKI
Three Hundred Years of Longing: Bu Jian Shang Xian San Bai Nian
ADMINS
To become a wiki admin plz email xiaoyu@sumeru-labs.com or yuqing@sumeru-labs.com
CONTRIBUTORS
No accepted contributions yet.
Fan Creations
No fan creations yet.
© 2026 Sumeru Labs. All rights reserved.
About Us | Privacy Policy | Terms of Use | Community Guidelines