Vanish, Vengeance & Vice Versa!

Mattheo knows he's in love with Luisa.
Luisa tries her best not to be in love with Mattheo.
Mattheo is confident.
Luisa is cautious.

In what is probably the only moment when they could have finally become a couple, a misunderstanding, and Luisa's inability to face the truth and her own feelings, lead to a final break between them.
And so Luisa ends up doing exactly what she's always accused her mother of: disappearing from Mattheo's life without a trace.

Five years later, Luisa returns with a suitcase full of shattered dreams.
With nowhere else to go, she seeks refuge with her best friend Vera - who, by chance, now shares an apartment with Luisa's personal nemesis, Mattheo, and his best friends Lucas, Sasha and Tara.
The chemistry between Luisa and Mattheo is still undeniable, but when a mysterious incident causes them to wake up in each other's bodies the next morning, it becomes clear that not only their friends, but fate itself, has had enough of their stubbornness!

___________________
Note:

This marks the chronological beginning of the Sin Thesis trilogy - planned as three interconnected novels and at least one completely independent spin-off.

The story is told in alternating first-person perspectives from Mattheo and Luisa and explores themes that may touch on sensitive or "taboo" subjects surrounding sexuality, identity, and body perception - both one's own and others'.
Its intention is neither to discredit nor to idealize any gender or gender traits, but to portray how the characters themselves perceive and wrestle with these ideas, often labeling them as "typically male" or "typically female."