
*An Unofficial Genshin Impact Visual Novel – Free to Claim! 100% Positive Reviews, 7-Hour Immersive Mystery to Save the World Tree*
When Nahida’s vacation invitation becomes a key to time travel, the Sabzeruz Festival transforms into a locked-room murder stage.

Earthquakes plague Sumeru City. Fresh from resolving a national crisis, Nahida senses something sinister—the Irminsul (World Tree) is decaying again. As despair sets in, a mysterious “Canned Knowledge” artifact suddenly drags her, the Traveler, Paimon, Alhaitham, and Dehya into a temporal vortex. They awaken in a 500-year-old Sumeru under the era of “Archonless Rule”! The festival bells still chime, but a bizarre murder has already unfolded in a locked room: the victim lies dead with windows sealed by vines, and witnesses insist no one entered or exited.
“Is this… really Sumeru?” Paimon’s cry voices their dread—familiar streets filled with strangers, the air thick with the Irminsul’s decay.

I. Immersive Detective Gameplay: Where Visual Novel Meets Hardcore Logic
Developed by indie team luern0313, the free game Her Bygone Days and the Flowers boasts a 100% Steam rating (38 reviews). Players become detectives across 7–8 hours of triple-layered mysteries:
- Crime Scene Investigation: Analyze petal patterns in locked rooms, scrutinize clues across 30+ custom CGs.
- Courtroom Battles: Use deduction skills honed in “lateral thinking puzzle” side quests to break suspects’ alibis.
- Quake Origins: Trace abnormal pulses in the Irminsul’s roots to unveil the truth behind Teyvat’s collapse.
“Fully voiced main story blew me away! Nahida’s line— ‘I finally… see you again’ —left me with chills.” —Chinese review
🎮 Free on Steam now!
II. Temporal Paradoxes and a Shocking Conspiracy
Deeper investigation reveals mind-bending twists:
- Seismic waves from the Sabzeruz Festival perfectly sync with modern-day Sumeru.
- Elemental residue on the victim matches Alhaitham’s weapon.
- A shattered statue of the Dendro Archon stands in the “Archonless” city square.
“Reuniting with ‘that person’ wrecked me,” a player forum post reveals. “Only when the Canned Knowledge’s memories activate does the cross-temporal salvation plan emerge…”
🆓 Free Game on Steam

III. Developer Easter Eggs
Though billed as fan-made (“story not official lore”), the detail-obsessed team luern0313 delivered:
- Lore Feast: 30 readable Akasha Terminal archives in the Akademiya.
- Voice Wizardry: Nahida’s VA achieved 92% vocal resemblance (player poll).
- Dynamic World: Buildings crack as earthquakes intensify with plot progression.
“A text-only game with no combat kept me up all night,” one player marveled. “Every clue clicks when the Canned Knowledge creator’s identity is revealed!”

⏳ Claim it free on Steam!
Min Specs: Windows 7, 2GB RAM, 4GB storage.
The Final Question: When the gavel falls, can you grasp a hand reaching across five centuries amid fading flowers?
Why It Resonates:
By weaving Genshin’s lore with original mystery, luern0313 created a love letter to Sumeru—proving fan passion can rival AAA storytelling. Nahida’s emotional journey here feels both fresh and deeply authentic to her character.