Alpha/Beta/Omega

In this manga the main character Aoi (young master) who was born an omega from two alpha parents was thrown out of his family by his step mother after the death of his parents. He was taken into by the Saionji family who was friends with Aoi's parents. Aoi has an one sided love for Jirou, the heir to the Saionji family who despises omegas. One problem is that Aoi is the only omega in a household full of Alphas.

Story between a popular high school student Chika who meet a small boy named Haruka. This meeting made the high school student feel hot. It turns out that he is not an alpha but an omega and this small child is his partner. Chika never touched this small boy and he had to wait 11 years before Haruka appeared before him, graduating from high school.

Tenmei family (Alpha elites) owns a pharmaceutical industry that is the major supplier of omega heat suppressants. Amamiya comes from a very poor family and is a candidate to work in the Tenmei family house hold. The selected candidate will be the mate of the successor of the household (Jin) but Amamiya was never told he will be participating as a bride. However, after being treated as a floor cushion by Jin, Amamiya got fired up to join the candidacy in order to teach the asshole a lesson.

manwha about Lee who is half an omega who produces no pheramons nor does he go into heat. He comes from a alpha and omega parents with three alpha brothers. He does not look like an omega since he is tall with broad shoulders and strong but after getting his first heat, he becomes very sensual.