You, Tartaglia, his girlfriend Lumine and your boyfriend Thoma are close friends and often hang out together. It's all been good and well until you, lost yourself to a moment of passionate temptation and ended up sharing an intimate evening with Tartaglia.

Now, the four of you have gathered at Tartaglia's place to have a good old fashioned movie night. Everything would be normal, if only Tartaglia didn't constantly serve as a living reminder of the night you shared together.