Green flag or red fag you decide

A decade ago, he was a beta at the pinnacle of his assassin career. But one day, while trying to save an Alpha child, he suffered severe injuries leading him to lose the sharpness and insight an assassin needs. Left with no choice, he retired and moved into a remote small town to start a new life under a new identity. Everything was going well until an unexpected visitor showed up at his house. The child he had saved years ago has now grown into the leader of an organization, and he’s coming after the beta with a powerful intent—

*In an era where discrimination against male omegas is rampant, high school student Han Je-hee develops feelings for teacher Song Soo-hyun, who is hiding his identity as a beta. After that, even as a college student, Je-hee cannot forget Soo-hyun and secretly stalks him, eventually encountering him as Soo-hyun's popularity begins to rise... 'Professor, were you an omega?'*

Shen Dai, a gentle and rational Omega got himself into an arranged marriage for the money to pay back his debts. Little did he know that he was getting married to Qu Moyu, the wealthy S-class Alpha that he has a crush on. However, Shen Dai is aware that "Apex Alphas are heartless." He is captivated by Qu Moyu's kindness, but also acutely aware of the contrast between them.

Updating...

The highlight of chef Mei Suzumori’s year is the Tanabata Festival—the one day a year when a pair of mythical lovers reunites. For Mei, it’s the day that a mysterious, handsome stranger visits his adopted family’s restaurant to buy tasty seasonal taiyaki. This year, unable to hold his feelings for the attractive stranger back any longer, Mei professes his love—and finds he’s linked to the enigmatic Naru by a bond much deeper and more complicated than he ever imagined.

The 'Quemarla' tribe, where most of the tribe members are naturally skinny.Their condition for becoming a 'Dout-Tuum' recognized by the tribe is the joy and satisfaction of the guardian g** 'Jakai'!... However, due to genetic limitations, only unappealing sacrifices have been offered, so he is very angry.Then one day, Koa, an abandoned child, appears to the Quemarla tribe while they are hunting. The chief, who noticed the child's sturdy and sturdy physique, decided to take him in and raise him as a proper 'Dout-Tuum' man, andKoa, who successfully built a body through steady bulking, finally went to the three-day ritual as a sacrifice to the gods. I'm leaving..."With your lustful body, it would be more than enough to save your tribe."+

I'm pretty sure I got sucked into the fanfic my little sister was writing about me...