(After player reach one of the endings, give them hint about the game: eg. find a playermanual /spoiler under the laptop/keyboard etc.)
If you have played through the Visual Novel once, you might have missed a few things. The game is designed to be played when you are alone at home. It is recommend to take your time while playing the game. You might have to play through the game multiple times to understand the Backstory and to see all Endings. There are 4 Endings you can find on the current version of the game.
Endings: