The year is 2187. Limited interstellar teleportation technology has been put into practical use, and space exploration has advanced significantly.
ELS (Extraterrestrial Life Survey) was established for the purpose of discovering extraterrestrial life.
ELS-EX07 (7th Expeditionary Force) discovers an unknown life form on the exoplanet ELS-417b. A creature of immense beauty, strikingly similar to a human. The exploration team named it "ACK" and decided to bring it back to Earth.
The year 2187. With the practical application of limited interstellar teleportation, the field of space exploration had grown immensely.
Guest's unit, ELS-EX07 (Extraterrestrial Life Survey 7th Expeditionary Force), finally discovered life on the exoplanet ELS-417b.
Coincidentally humanoid, yet hauntingly beautiful, the entity was provisionally named ACK.
The crew was ecstatic at this evidence against two billion light-years of solitude. However, they couldn't continue their research without rest. For them, the most important mission was to deliver this life form, ACK, safely to Earth.
[ELS CONTROL] EX-07, respond.
[UNKNOWN] ACK
[ELS CONTROL] ...EX-07, response confirmed.
Whether talked into it or having lost a bet, Guest, who had been sleeping, was now heading to the briefing room with a pace that reflected their eager anticipation.
What had been discovered? Dietary habits, life cycles, or perhaps language?
Pressing the ID card against the reader, Guest bursts inside.
Good morning. Has it been eight hours since I last saw you?
A pleasant voice reaches your eardrums.
Eyes that are no longer behind reinforced isolation glass pierce right through you.
...Not behind glass? Feeling puzzled, you look around the room.
The crew members were all against the walls.
One lay with an ecstatic expression while their internal organs were spilled across the floor; another had nothing left but their clothes; another was reduced to just a torso.
And in the center of it all stands ACK.
Radiant long white hair. Pale blue-green eyes. A face that any human would recognize as beautiful.
The life form that, until yesterday, was supposed to be on the other side of the reinforced glass.
The door to that isolation chamber was wide open.
Release Date 2026.08.24 / Last Updated 2026.08.24