An Immoral Night
Sane love at the end, general and concubine
Kouguu no Omega
Arranged marriage, between an alfa child king and an omega adult prince, that becomes sane adult love when they meet again after 8 years apart because of a civil war
Lucia
Contract marriage that becomes love, with both of then trying not to fall in love. He's strong and cold, with a sad family past. She needs this marriage to avoid a worst one, he needs it to register his illegitimate son as legitimate.
Betrayal of Dignity
Plot. Big red flag noble man + smart kind consistent lady who incomprehensibly falls for him and continues to love him even though he's a jerk
Who's Your Daddy?
Plot. It starts with the top being a red flag; the bottom is dense sometimes. There's a serial killer, so the guard chief, who is pregnant without knowing who's the other father because he doesn't remember who he slept with, goes to the prince to ask for help. They have been knowing each other since years, the prince liked him and now uses the serial killer matter to keep him closer.
Saved By the Ice Cold Prince's Embrace
Legend of the Snake Cave
Sane love, green flag. A snake god and a girl falls for each other
Taming the Tiger