Oboreru OmegaOboreru Omega: Mamoritai no ni Haramasetai; 溺れるオメガ; 溺れるオメガ ―守りたいのに孕ませたい―; 溺れるオメガ -after story-

Kazuya and Yu are both in the swim club. One day, Kazuya smells and violently reacts to something that shouldn't exist at their school for elite alphas... this is a story about an alpha who is an under-performer and an omega who's an overachiever.