Machine Child/Stamina Recovery

This page lists stamina recovery options, connection unlocks, and the key rules you need to plan recovery and avoid getting Sick.

Stamina Recovery Events

ID	エベント	Event	Recovers	Requires	Week	Cooldown
E3904	ホッと一息	A Short Breather	10	None	3–17	Does not recur
E3800	植物園	The Botanical Garden	30	Love >= 10	4–48	6 turns
E3805	温泉でリフレッシュ	Revitalized at the Hot Springs	50	None	4–48	4 turns
E3801	のんびり休日	A Day of Relaxation	50	Love >= 30	4–48	8 turns
E3810	友達と休日（お散歩）	A Day Spent With a Friend (Stroll)	20	ハーミア / Hermia	1–48	6 turns
E3811	友達と休日（女子談義）	A Day Spent With a Friend (Girl Talk)	20	シルヴィア / Silvia	1–48	6 turns
E3812	友達と休日（歌）	A Day Spent With a Friend (Singing)	20	カタリナ / Katherina	1–48	6 turns
E3813	教会でお祈り	Praying at the Church	30	ヘレナ / Helena	1–48	6 turns
E3815	妖精の泉	The Fairy's Fountain	999	アイリス / Iris	1–48	10 turns
—	のんびり休暇（バケーション）	Vacation (Full Rest)	999*	May cost money	Varies	Varies

• Vacations restore full Stamina and cure Sick, but may cost money; plan around money and timing.
• 植物園/The Botanical Garden (E3800) and のんびり休日/A Day of Relaxation (E3801) each increase Love by 1.

Quick reminders

• If you have at least 1 Stamina, you can perform any action. Reaching exactly 0 Stamina is safe, but at 0 you cannot perform non-recovery actions.
• There is a chance to become sick if an event would require more Stamina than you currently have; see Getting Sick for the formula and examples.

• Keep money set aside to treat sickness (Vacation or Medicine) when deciding to reduce Stamina below zero.

• Lemonade restores 30 Stamina on purchase, but its shop price increases over time and with number of purchases.

• Treat Lemonade as a progressively more expensive emergency resource.

• Medicine cures Sick, but each purchase is consumed on use and its price increases with each buy.
• Passive per-turn recovery depends on a heroine's total base stats; see turn recovery formula for how passive recovery is calculated.
• Iris mastery bonus: when healthy, grants +10 Stamina after each event, effectively reducing the net stamina cost per event.

Connection Requirements

ハーミア / Hermia

• Relaxation Event: 友達と休日（お散歩）/A Day Spent With a Friend (Stroll) (E3810) — Recover Stamina: 20 — Recur: every 6 turns — Panel: VIT×1
• Meet Connection:

• Communication Event: 命がけの救出/The Thrilling Rescue (E0178) — Skill Cost: 196 — Stamina: 30 — Skills: 柔軟体操/Calisthenics (VIT#1), お祈り/Prayer (MOR#1)

シルヴィア / Silvia

• Relaxation Event: 友達と休日（女子談義）/A Day Spent With a Friend (Girl Talk) (E3811) — Recover Stamina: 20 — Recur: every 6 turns — Panel: CHA×1
• Meet Connection:

• Communication Event: 優しい嘘/A White Lie (E0166) — Skill Cost: 1448 — Stamina: 30 — Skills: お祈り/Prayer (MOR#1), 共感/Empathy (MOR#5)

カタリナ / Katherina

• Relaxation Event: 友達と休日（歌）/A Day Spent With a Friend (Singing) (E3812) — Recover Stamina: 20 — Recur: every 6 turns — Panel: SEN×1
• Meet Connection:

• Communication Event: 翼の生えた獣/The Winged Beast (E0159) — Skill Cost: 1898 — Stamina: 30 — Skills: お絵描き/Painting (SEN#1), 集中力/Focus (SEN#2), 精神力/Willpower (SEN#4)

ヘレナ / Helena

• Relaxation Event: 教会でお祈り/Praying at the Church (E3813) — Recover Stamina: 30 — Recur: every 6 turns — Panel: Holy See×1
• Meet Connection:

• Communication Event: 熱傷/The Burn (E0219) — Skill Cost: 6198 — Stamina: 30 — Skills: お絵描き/Painting (SEN#1), 集中力/Focus (SEN#2), 精神力/Willpower (SEN#4), 外国語/Foreign Languages (INT#6), 医学/Medicine (INT#8)

アイリス / Iris

• Relaxation Event: 妖精の泉/The Fairy's Fountain (E3815) — Recover Stamina: 999 — Recur: every 10 turns — Panel: CHA×1, VIT×1, SEN×1, INT×1, MOR×1
• Meet Connection:

• Communication Event: おとぎ話/A Fairy Tale (E1614) — Skill Cost: 15026 — Stamina: 30 — Skills: お絵描き/Painting (SEN#1), 集中力/Focus (SEN#2), 調和/Harmony (SEN#3), 占星術/Astrology (SEN#5), 魔法学/Magical Studies (SEN#8), 読み書き/Reading and Writing (INT#1), 自然学/Natural Sciences (INT#4), 外国語/Foreign Languages (INT#6), 論理学/Logic (INT#9), 真理探究/Truth-seeking (INT#11)

• Mastery bonus: イベント実行ごとにスタミナ+10（健康時のみ） / Stamina +10 per event viewed (only when healthy).

Overview / Mechanics

This page summarizes the stamina rules and the gameplay effects that matter for planning. Use the Recovery Services page for the full per-service table and one-click unlock plans.

Core stamina rules

• Stamina is spent to perform events/actions. Most normal story/work events consume 10 Stamina.
• If you have at least 1 Stamina, you can perform any action. Reaching exactly 0 stamina is safe, but when at 0 you cannot perform non-recovery actions (you can still use recovery events).
• Vacations / Relaxation services restore stamina; some vacations restore full (max) stamina and also cure Sick status. Vacation actions may cost money and often have cooldowns. Plan vacations when you expect sickness or when you need a full refill for a long session.
• Consumables:

• Lemonade — restores 30 Stamina. Lemonade price increases over time and with number of purchases, treat it as a progressively more expensive limited resource.
• Medicine (かぜ薬) — cures Sick. Medicine price increases with each purchase, keep a small emergency stock for illness.

• Passive per-turn recovery is determined by heroine base stats. Passive-percentage items multiply (modify) that per-turn base; list passive items as percent modifiers until you have the game's base-per-turn number for a given heroine.
• Reward-Reel / stamina panels: certain items increase the number of stamina panels or the probability of stamina appearing on reward reels; these increase event-derived stamina intake.
• Unlocking recovery options increases the number of usable actions in a turn; unlocking one or more reliable recovery services can be worth the unlock cost if it increases net actions per session.

Getting Sick

If an event would require more Stamina than you currently have, you have a chance to become sick based on the deficit from the event.

Sickness chance = clamp( Deficit + 10, 10, 100 ) %

That is, add 10 to the deficit and cap the result between 10% and 100%.

Short reference (deficit → chance)

Deficit	Sickness chance
1	11%
5	15%
10	20%
20	30%
50	60%
90	100%

Notes

• If EventCost ≤ CurrentStamina, sickness chance = 0%.
• The chart above is linear: every 1 point of deficit raises the chance by 1 percentage point (after the +10 offset) until the 100% cap.
• Example: EventCost 100, CurrentStamina 95 → Deficit 5 → Chance = 5 + 10 = 15%.

Natural recovery from Sick

While Sick, your heroine still regains stamina each turn, but at half the normal rate.

At the end of each turn there is a chance the Sick status will be cured. The cure chance is based on current stamina as a fraction of max stamina:

Cure chance = (Current Stamina ÷ Max Stamina) × 100%

That is, the higher your current stamina relative to max, the more likely the heroine will recover from Sick at the end of the turn.

• Current Stamina = Max Stamina → 100% chance to be cured
• Current Stamina = 50% of Max → 50% chance to be cured
• Current Stamina = 0 → 0% chance to be cured

• Sickness also cures instantly if you use Medicine (かぜ薬) or go on a Vacation.

Quick planning rules

• Avoid letting stamina remain capped at max between turns — wasted recovery is opportunity cost.
• Prefer recurring, short-cooldown services for steady sessions, and reserve large vacations or Lemonade for planned long sessions or emergencies.
• Because Lemonade and Medicine increase in price per purchase, prefer reusable recovery (services, passive boosts) where economically sensible.

Stamina-related items

This table lists only items that directly affect stamina (consumables, passives that change passive-per-turn regen, and items that affect reward-reel stamina panels).

アイテム	Item	Category	Price	Source	Effect / Notes
レモネード	Lemonade	Consumable	45	Shop	Restores 30 Stamina when purchased. Price increases by +5 Gold per purchase and +5 Gold per turn.
かぜ薬	Medicine	Consumable	10	Shop	Cures the Sick status condition when purchased. Price increases by +70 Gold with each purchase.
ふかふかの枕	Fluffy Pillow	Passive	200	Shop	+3% to passive Stamina recovery per turn.
もこもこのパジャマ	Soft Pajamas	Passive	500	Shop	+9% to passive Stamina recovery per turn.
魔法の羽毛布団	Magical Feather Duvet	Passive	1000	Shop*	+18% to passive Stamina recovery per turn.
薬草瓶	Herb Jar	Passive	1000	Shop	Adds 2 extra "Stamina Bonus" panels to the Reward Reel.

Notes on items

• Lemonade and Medicine both grow in price with purchases, prefer stamina recovery events and passive unlocks over repeat consumable buys when possible. Try to keep enough money on hand when doing a risky event to cure sickness with Medicine or to pay for a Vacation.

Unlocking 羽毛の魔法 / The Magic of a Feather

You must complete this event chain to unlock 魔法の羽毛布団 / Magical Feather Duvet in the shop.
Complete the chain by end of Turn 34 to receive the item reward.

• Communication Event: 不眠症/Insomnia (E0198) — Skill Cost: 1528 — Stamina: 30 — Skills: お祈り/Prayer (MOR#1), マナー/Manners (MOR#2), 鼓舞激励/Encouragement (MOR#3)
• Communication Event: シルク/Silk (E0008) — Skill Cost: 1850 — Stamina: 30 — Skills: 工作工芸/Craftsmanship (VIT#2), 文学/Literature (MOR#4)
• Communication Event: 羊飼いは今日も眠い/The Drowsy Shepherd (E0171) — Skill Cost: 3876 — Stamina: 20 — Skills: お絵描き/Painting (SEN#1), 調和/Harmony (SEN#3), 読み書き/Reading and Writing (INT#1), 自然学/Natural Sciences (INT#4), 心理学/Psychology (INT#5)
• Communication Event: 羽毛の魔法/A Feathery Miracle (E0010) — Skill Cost: 6048 — Stamina: 30 — Skills: 哲学/Philosophy (INT#10), お祈り/Prayer (MOR#1), 共感/Empathy (MOR#5), 社会奉仕/Volunteer Work (MOR#6)

Stamina Recovery per Turn

Each turn, your heroine automatically regains Stamina based on her stats and purchased items according to this formula:

Turn Heal = floor( ( Heroine's BaseHeal + clamp(TotalStats, 0, 5000) × 0.0075 ) × (1 + ItemBonus%) )

名前	Name	BaseHeal
フロリナ	Florina	52
コーデリア	Cordelia	46
クロエ	Chloe	65
ソフィー	Sophie	39

• TotalStats is the sum of the heroine's main stats (clamped to 0..5000).
• ItemBonus% comes from rest gear like Pillow (+3%), Pajamas (+9%), and Duvet (+18%).
• Recovery is halved while Sick.