Omegaverse, Son x father
Guardian (a friend of dead father, which he (guardian) lovedl
Father in low
Guardian
Seme was in love in uke's dad (who died)
Ch 2.2. rape, ch 1 forced sex
Father x son, rape, blood
Half-brothers - Chapter 5 (also Father x Son)
Ch 2 - cousins; brother in law (sister's husband)
Ch 3 - dad let his 2 sons to fuck his wife (male)
Step-father x Step-son - Chapter 5
uncle and nephew
Rape (a forced plaything kind of deal) blackmail
sexual abuse
age gap
S&M and bondage
Maou no Keifu