Normal Scenario (20 min scenario + adult scene):
"Hey, do you like aquariums?"

In a secluded room of a coworking space, you meet a female student named Fujiki. She talks to you about things in her daily life which you quietly listen to in your room as you work on your school assignments. All while hoping for some peace and quiet. How will your daily life change in your interactions with Fujiki?

Dark Side Scenario (almost exclusively adult scenes):
"She is a highly dangerous being. A ship that is perpetually bobbing on the waves of real despair and nonexistent hope. This delicate balance will surely collapse at any moment."

In your room late at night, you begin to imagine Fujiki's downfall. A middle-aged man she meets at a bar invites her to join him, leading her to surrender her body to the temptation of the enticing destructive impulses. The pleasure provided by his manhood makes her shriek as her seductive voice resounds in the room.

[From Steam and translated from DMM]