Planned Release Date: October 2025

Mature Content Description

The developers describe the content like this:

My Egg Girls: A Gentle Story contains 2D illustrations and text depicting consensual sexual activity between adults.
– Scenes include full nudity, kissing, breast and genital contact, and sexual intercourse ( missionary, cowgirl ).
– All characters are 20 years of age or older.
– No non-consensual acts, sexual violence, drug or alcohol abuse, bestiality, minors, gore, or extreme violence are depicted.
– Erotic content unlocks naturally as the player’s relationship with each heroine deepens.

About This Game

Emotion × Romance/Emotion Raising Sim × Visual Novel – 100 Days to Say Goodbye

Two mysterious eggs hatch into Yukino, a gentle soul, and Rinne, a lively spirit.

Your daily choices shape their hearts through a unique emotion-AI system—every action stirs their feelings of Joy, Anxiety, Rebellion, and Disappointment, changing both their behavior and the story’s outcome.

Your decisions across five chapters will determine whether the 100 days end in a happy, normal, or bittersweet farewell.

Two girls born from mysterious eggs—

Yukino, delicate and reserved, and Rinne, full of energy.

Spend your days together, and experience how their hearts truly change, as every choice you make synchronizes with their feelings through the emotion-AI system.

But after 100 days, an unknown fate awaits them… and you.

A healing, gentle romance with the bittersweet countdown of 100 days.

“These girls are not just romance targets—they are mirrors to your own heart.”

The story invites you to heal your own tired heart and discover what genuine connection really means.

A heartwarming journey told across five chapters, featuring multi-ending emotion simulation × adventure.

【Features】

■ A Living Emotion: New-Generation Heroine Simulation

The girls’ moods and reactions change daily based on your chosen commands.

Their expressions, attitudes, and words are shaped by the evolving simulation of their feelings.

Choose from commands like "Talk," "Ask About Feelings," and "Compliment."

Depending on each girl's current mood, the same command can produce very different results.

For example, if their Anxiety or Disappointment is high, new events or choices may appear—or certain actions may be locked out.

Balance all five emotions—Neutral, Joy, Anxiety, Rebellion, Disappointment—to deepen your bond.

Let awkward days linger, and even the course of the story may shift!

Each chapter advances only when certain emotional thresholds are met.

■ Five Chapters of Carefully-Crafted, Branching Story

Enjoy meaningful daily interactions with both heroines.

Experience slice-of-life moments like caring for kittens or preparing for a summer festival—will your bond become romantic, or more like family? The answer is yours to shape.

Your choices and the bonds you build will change the ending, with multi-ending structure across the story.

Over 9 hand-drawn CG event scenes , and full 2D Spine animation for character sprites!

■ 2.5x the Content and Depth of the Previous Game

In response to player feedback, this title offers much greater depth in simulation, more events, and a richer story than our previous work.

All CGs are fully hand-drawn, 100% original—no AI artwork is used.

■ Multilingual & Global Support

Available in Japanese, English, Simplified Chinese, and Korean .

【Emotion Simulation / Gameplay Loop Example】

Choose daily commands

Manage the heroines’ day with a wide variety of actions

Emotions and parameters shift as the girls’ moods change

The same choices can lead to different results depending on their feelings

■ Special Chapter Events

Unique events unlock at key chapters.

Over five chapters, your choices branch toward multiple endings—Happy, Normal, or Bitter—based on the bonds and feelings you’ve built.

【Recommended for…】

Fans of romance ADV, life sims, and emotion-driven heroine simulations

Players who want to nurture not just stats, but hearts

Anyone seeking gentle healing and a touch of excitement

Those looking for a game where the smallest changes in feelings matter, and every heroine is unique

【Specs & Details】

Estimated playtime: 2–3 hours per run

Over 9 hand-drawn event CGs 

Includes 4 H-CG scenes (with 20+ variations, all soft and consensual)

Japanese, English, Simplified Chinese, and Korean supported

Your choices will shape their hearts—and their future.

Experience a simulation of healing and true romance like never before.

【Credit notation】

■ Development, Scenario & Lyrics

Human Simulate (Satsumaimo)

■ Main Illustrator

Hidari-no-Eisei

■ Voice Cast

Yukino Shirasaki: Tanaka

Rinne Kurose: Pote Hula

■ Theme Song Composer

South&

■ Logo Design

Itinose Raise

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

The multilingual support for this game utilizes AI translation, followed by human proofreading and quality checks.
We strive to ensure translation quality so that as many people as possible can enjoy the story.