Semyon is a reclusive 25-year-old living in a large city somewhere in early 21st century Russia, spending most of his time in his flat interacting with others on his computer and earning enough to keep the bills paid.
One winter day he boards a bus to attend a reunion, falls asleep along the way, and awakens to find it's now summer and he's dropped off at the front gates of a place called Sovionok (Совёнок, "owlet" in Russian).
Semyon soon discovers it is a Pioneer Camp populated by youth, including several attractive girls who show interest in him; furthermore, he has reverted to his 18-year-old self and it is now the mid-1980s.
In the days that follow, Semyon must navigate the relationships and possibly find love with the various people he encounters, while trying to solve the mystery of how and why he was brought to this place,
and how to escape and return to his former life once it becomes evident he may be trapped in a time loop.
The game uses texts and sprites in a manner similar to many Japanese visual novels and runs on the Ren'Py visual novel engine. At various points the player must make choices which will affect dialogue and determine what path the game will take. The game has multiple endings, some of them portraying Semyon forming a romantic relationship with one of the female characters, while others end badly. Some of the endings are not available until they are unlocked by completing other endings.