Seven Seas revealed the cover for Vol. 4 of Three Hundred Years of Longing, a fantasy danmei novel by Mu Su Li. This volume is also the series finale.
Artist 红鹤鸣冬 returns from their work on Vols. 1-3 of the series to provide the cover illustration. Artist Me.Mimo, who joined the art team in Vol. 3, once more provides interior illustrations. [Source: Twitter/X, Bluesky]
Seven Seas provides the following volume summary:
WHEN THE HEAVENS LIE, WHO DECIDES WHAT IS REAL?
With Xiao Fuxuan at his side, Wu Xingxue survives the ordeal of recovering his memories—only to find himself with lingering questions. Their search for answers leads them to an impossible place: another Urbs Caelestia, where history repeats in warped reflections. Amid the fractures, Hua Xin’s truth surfaces, shaped by the devotion he carried, the choices he cannot undo, and the reckoning that awaits him.
To complicate matters further, the reckoning is interrupted by Tianxiu and Rex Spiritus, who believe their world is the core reality—which makes Wu Xingxue and Xiao Fuxuan a threat.
Despite all opposition, Wu Xingxue is determined to destroy the Heavenly Principles for good. But when reality threatens to collapse under divine wrath, will the love he shares with Xiao Fuxuan be strong enough to save what remains?
Three Hundred Years of Longing: Bu Jian Shang Xian San Bai Nian Vol. 4 is slated for release on September 29, 2026. Preorders are live with select retailers:
U.S.:
Canada:
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Three Hundred Years Of Longing
不见上仙三百年
[Synopsis Provided by Seven Seas Entertainment:]
Floating above the Boundless Sea is Tealspire—a towering, thirty-three-story prison built to contain fiends, where the damned are forgotten and demons waste away. At its summit, Wu Xingxue awakens with blood on his hands, chains at his feet, and no memory of how he arrived. The life he once led as a nobleman of Magpie Haven is gone, replaced by confinement and confusion.
Disoriented and stripped of everything, Wu Xingxue is no longer a pampered aristocrat—he’s an archfiend. But fate has other plans. His awakening stirs the legendary Tianxiu Immortal, Xiao Fuxuan: a cold, enigmatic figure with the word mian etched into his neck, wielding a power steeped in divine judgment.
As Tealspire begins to collapse around them, the two must forge a reluctant alliance to survive its fall—and face whatever awaits below. Yet the mysteries only deepen. Why did Tealspire fall? What became of Wu Xingxue’s former life? And who, truly, is the Tianxiu Immortal?
Three Hundred Years of Longing: Bu Jian Shang Xian San Bai Nian (不见上仙三百年) is a danmei novel by Mu Su Li. The series is set in the same universe as Copper Coins and Panguan. It began serialization in 2021 and ran for 128 chapters (plus 8 Extras), and is available to read in Chinese on JJWXC.
The series has received an audio drama adaptation, as well as a discontinued manhua adaptation.
You can learn more about Three Hundred Years Of Longing in the DanmeiNews catalog.
