■Story
A story set in a certain fictional world, a certain fictional country, and a certain fictional city.

That was August 1st.
When the protagonist wakes up in the morning, he suddenly loses ``everything'' he remembers from before August 1st...

What appeared in front of her was a boy named Orion who called himself a ``Spirit''.
With Orion's guidance, he will struggle to regain his memories...

■Character
Unfriendly and single-minded ≪Heart≫
"Shin" (CV: Tetsuya Kakihara)
The main character's childhood friend and lover.
Although she is 18 years old, she is cold in a way that befits her age.
Although he often uses cold words to manipulate the protagonist, he is actually very kind-hearted.
He thinks about her more than anyone else when he acts.
He is currently a third year high school student and is studying for his university entrance exam.
He is also Toma's childhood friend.

Fascinating ≪Spade≫ that confuses women
“Ikki” (CV: Kisho Taniyama)
It is said that it captivates all the members of the opposite sex it meets.
A fourth-year university student with a unique constitution. 22 years old.
Because of that constitution, I gave up on having a sincere relationship,
I surrendered to momentary pleasure, but the power of my eyes was not working.
She becomes interested in the main character and becomes a lover.
He's actually a diligent, kind, and sincere person.
He is good friends with Kent, who attends the same university.

Cool and rational ≪Clover≫
“Kent” (CV: Akira Ishida)
A graduate student in the Department of Mathematics with a bright mind and excellent academic performance. 25 years old.
I have a habit of trying to look at things objectively and analytically from a bird's-eye view.
However, things don't seem to go as planned after they become lovers with the main character.
Because he tries to think about everything logically, he is extremely clumsy when dealing with women.
He is close to Ikki, his rival in math puzzles.

The ≪Diamond≫ of compassion and rapture
“Toma” (CV: Satoshi Hino)
A childhood friend whom the protagonist adores like an older brother.
A second year university student majoring in law. 20-year-old.
He wants to be closer to the protagonist than anyone else, so he loses his memory and stops on the road.
He worries about her and protects her when she collapses.
He is kind and gentle, but has a strong desire to protect the protagonist.
Sometimes he acts in an erratic way.
He is also Shin's childhood friend.

≪Joker≫ shrouded in mystery
Ukyo (CV: Yuki Miyata)
A strange young man who appears everywhere.
He issues a mysterious warning to the protagonist and then leaves.
Do you want to protect the protagonist, or do you want to harm him?
The true intentions and purpose are shrouded in mystery.

Spirits that support the main character
Orion (CV: Hiromi Igarashi)
A spirit that came from a completely different world.
According to human standards, he looks like a boy around 10 years old.
I was asked to run a small errand,
On his way to the human world, he collides with the protagonist's conscious body.
Due to the trouble at that time, Orion becomes trapped inside the protagonist's mind.
They will support the main character for their mutual goal (regaining their memories).

■How to play
After the opening movie plays, the title screen will be displayed.
If you are playing for the first time, please select "NEW GAME".
If you want to play from the saved location, press "CONTINUE".
If you want to choose the next story, please select "CHAPTER".
Once you clear the prologue, you will be able to select the next story.
From the first chapter, you can select one chapter out of the four characters to be conquered.
Play the prologue, find your favorite character and conquer it♪

Operations during the game are very easy!
Touch with two fingers! :Open menu
Touch with three fingers! :Text skip
Press and hold for more than 1 second: Auto play

☆Bonus☆
GALLERY: You can view the CG pictures that appear in the game, and the number of CG pictures you can see increases as you progress through the chapters.
MOVIE: You can watch the opening/ending of the game whenever you want.
ENDING LIST: You can check the ending clear status.
In addition, there are many useful functions that will allow you to play the game comfortably and happily!

★Name Entry
Select "NEW GAME" from the title menu to move to the name input screen.
You can enter up to 5 characters for the name.
You are the main character of the story! !

★Autoplay/Skip
By selecting Auto from the menu, you can proceed with the story automatically without touching the screen.
If you select Skip Read, you can skip the read part,
It is also possible to forcibly skip parts that you have not read yet with Force Skip!
　
★Quick save
If you want to end the game in a hurry, you can use quick save to temporarily save your progress!

★Parameters
<>
　This is your liking for the character. It can also be said to be the strength of the main character's love.
The higher this number is, the more likely you are to get a good ending!

<>
If the relationship between you and the character goes in a better direction, it will increase, and if it worsens, it will decrease.
　　This is a number that represents the good relationship with the target in terms of non-romantic feelings.

<>
　　When the other person asks you, ``Aren't you suffering from memory loss?'' ” This is a number that increases when someone suspects something.
If the value of this parameter is high, it will be easier to get a bad ending.

≪Suspicion≫
　　This is a parameter exclusively for Tomaroot.
If you have doubts about Toma's words or actions, the value will increase.
The ending you receive will differ depending on this number.

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[Supported OS]
Please check the help page on the official website for compatible OS.

[Official site]
https://www.otomate.jp/smp/amnesia_app/

Although you may be able to purchase this app on non-recommended OS or non-compatible devices, there is a possibility that it will not work properly.
Please note that we cannot guarantee operation or provide refunds for use on non-recommended OS or non-compatible devices.

*We recommend downloading in a Wi-Fi communication environment.
*Save data cannot be transferred after changing models.

■□■□■□■User support■□■□■□■

If you have any problems with the operation of the app,
Please check our Frequently Asked Questions.

□Frequently asked questions
http://www.ideaf.co.jp/support/q_a.html
□*Help regarding download errors
https://support.google.com/googleplay/answer/1067233?hl=ja&ref_topic=1046719

If the problem still persists, please use the email form on the page below.
Please contact us.

*Please note that saved data cannot be transferred after changing models.
*User support is only available in Japanese.

□Contact us
http://www.ideaf.co.jp/support/us.html

*Please note that if the billing process on Google Play is successful, it will be assumed that the download to the compatible device has been completed, and we will not be able to provide refunds after that.
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