Dispar
Ongoing | 4U | 2000 released
The younger brother (very possessive) abuses the eldest who is hated by their father. The eldest one is in love with him. After sufering from amnesia the younger one only recoginse his brother as his lover and doesn't remember the others, not even his father.
Love in the Fujinami Household -A New Romance Begins in the Family!?-
Ongoing | Amane ninomae | 2019 released
In the Cage
Complete | Satou Sanayuki | 2018 released
2019-10-06 10:27 marked
Two alpha brothers like the same omega. The eldest is his fated pair and is adopted by another family to have power, and pick him up as soon as he can. Chapter 6.5
Ore no Otouto no Hajimete no Onedari