After being raped in high school, Omega Naoto decided to keep the child conceived during this terrible incident. A few years later, he is raising his daughter alone and struggling to find work. Wherever he goes, recruiters reject him just because he's a single omega. But when he finally finds a job, a young alpha approaches him declaring his love. Naoto can't get rid of his distrust and his hatred towards the alphas, responsible for his aggression, yet this one has something different...