Human Farm Investigation Story Overview and Day Beats

Premise and series context

Human Farm : Investigation : is the third mainline entry in とっくり海月’s Human Farm series, published by 072 Project on Steam as app 3953160 with a launch date of August 7, 2026. You play Iori, an mature policewoman assigned to infiltrate an illegal underground human farm disguised as new labor. The story blends police procedural investigation, farm management with farm RPG mechanics, city-side errands, and thirty-four story events leading to five or more endings.

Prior titles Rehabilitation and Practice Section established the setting’s tone; Investigation expands topside city gameplay and handler politics. Series Comparison contrasts themes without requiring you to play earlier games first.

All cast in mature scenes are aged twenty or older per official materials.

Act structure (spoiler-light)

Arrival and cover (early days)

Iori reaches the farm, meets the Boss pastry chef who manages daily operations, and is introduced to residents including Aina and Karen. Early shifts teach farm-shift tasks and map layout — see Underground Farm and How to Play.

Police contact Tsubaki sets reporting expectations. Handler Maria and field agent Rui appear through cafe and city channels — Police Allies profiles their roles.

Goal: establish trustworthy cover without triggering suspicion mechanics in Investigation Mechanics.

Dual life rhythm (mid campaign)

Days split between farm labor and city investigation. Iori gathers evidence, attends performances involving singer Alice, and balances conflicting handler instructions. Missing city appointments soft-locks later scenes — City Quests details scheduling.

Relationship and trust flags accumulate silently. Evening scene windows become tighter; run mode is essential — Settings and Run Mode.

Escalation (late campaign)

Evidence thresholds approach raid eligibility. Cover may hold or break depending on farm behavior and dialogue choices. mature event density increases; optional scenes with farm cast and police allies often gate epilogue variants.

Players aiming for the true ending must complete checklist items in True Ending Checklist before accepting premature raid prompts.

Finale cluster

Final nights present location choices routing to five-plus endings — detailed in Ending Routes and How to Get Endings. Epilogues reflect investigation completeness, cover status, and ally relationships.

The scene gallery unlocker does not substitute playing these finale branches on valid saves.

Cast at a glance

Character	Role	Wiki
Iori	Protagonist, undercover officer	Iori
Maria	Handler, cafe operator	Police Allies
Rui	Field support	Police Allies
Tsubaki	Station liaison	Police Allies
Aina, Karen	Farm residents	Farm Cast
Boss	Pastry chef manager	Farm Cast
Alice	City singer	Farm Cast

Full relationship web: Character Roster.

Day-by-day player priorities

While exact calendar length varies by route, use this template each day:

1. Read new objectives from police UI or NPC prompts
2. Complete minimum farm tasks to protect cover
3. Travel city if a quest icon or handler message appears — City Locations
4. Deliver items before night — Items
5. Position for evening scene noted in personal notes or Scene Checklist
6. Save before sleep on branch nights — Beginner Tips

Story Overview intentionally avoids naming every flag; use specialized pages when a day fails silently.

Demo boundary

The Steam demo ends after Day 1. Demo content aligns with the opening beats above but does not include city escalation or finales. Purchase the full game for remaining days — Demo Day 1.

Content and restore patch

Default Steam cut may differ from patched restores. If story beats or CGs mismatch guides, install Official Patch via Patch Install Helper before assuming walkthrough error.

Where to go next

• Routing — Ending Routes
• Completion — True Ending Checklist
• Scenes — How to Unlock Scenes
• Opinion piece — Full Review

Story Overview orients you in time; specialized pages win the calendar war.