>>164946367>I Fell in Love with My Sister from Another Dimension!?
A boy falls in love with his sister.
Unable to confess, he is gifted by a deus ex machina with his sister's "secret" phone number. Never minding the fact that it's different from the number listed on his phone, he immediately calls her, and is overjoyed to find out that she has a crush on him as well.
But, the next day, when he recounts the previous day's confessions to his sister, she only looks at him with a perplexed expression. After some investigation, he finds out that the girl he called is not the same sibling he fell in love with. In fact, she doesn't exist in this universe at all. She is his sister's alternate universe counterpart, who has fallen in love with her brother, the MC's own AU self, who too is blissfully unaware of her crush.
Hijinks ensue as the two strike up a deal to give each other their darkest, most private secrets in order to equip the other with the weapons they need to conquer the heart of their other selves. While the two chase their respective loved ones, DRAMA ensues as they begin to fall in love with each other instead and question the NATURE of INCEST.