Karate fighter (alpha) x judo fighter (omega)
My rating: 8,6/10
OMEGAVERSE, RIVALS TO LOVERS, COMEDY
Captain of the Judo Club, Mochizuki, and Captain of the Karate Club, Ishio, are well known rivals constantly fighting over just everything. One day, Ishio accidentally saw Mochizukia's bare skin when he was changing clothes and became really flustered. And so Mochizuki thought of a new strategy: defeating his rival by harassing him sexually. But Ishio is concerned and tells him to quit it as Mochizuki is an omega and could trigger him.
Omae no Koi wa Ore no Mono