Latia Astaroth-Latia is Romonus' official fiance to join the Astaroth and Gremory households. This was initiated by Ajuka Beelzebub and Sirzechs who wanted their families to be joined together.
Serafall Leviathan- Serafall is Romonus' first girlfriend aside from Latia. For nearly 6 centuries she has been caught up in the Great War or the Civil War. After the war, she was too busy as the new Leviathan to have a lover. When Romonus came around that changed as for her age she was very immature and he is very mature.
Miria Amduscias- Last surviving member of the extinct Amduscias clan. She currently serves as a guard for Serafall as her life was saved from Tsufaame Tereaku Leviathan. Sadly her Father the last Lord Amduscias was not so lucky.
She has terrible luck with boyfriends as she is very unstable and has a habit to through them through buildings. Romonus came along and became a constant in her life and he has a thing for women like her. She is a bit crazy, but Romonus likes that.
Venelana Bael- Venalana's marriage for the first two centuries was good, but that ended when her ex-husband began to gather more women. She tried to manage it for a time and even helped him gather more only to be ignored for years at a time.
When Zeoticus got one of his mistress pregnant that was the last straw and she left him. However, she found what she needed in her youngest son's arms as her Clan has a long history of incest. Thanks to some incidents in his first life Romonus has an incest kink. His Mother was no exception.
Roygun Belphagor- Roygun met Romonus when he accepted to become the next Lord Bael at a meeting of the Clan Lords. For several reasons she felt an instant attraction to him because of not just his strength, but her kink of wanting a younger lover.
He found her pink hair, her horns, and her potential captivating and turned her into his lover not long after.
Akeno Himejima-Well aware of when and where she showed up, Romonus was there to save her from her would-be killers instead of Rias. Over the course of 2 years, he helped her through her trauma, promised to resurrect her Mother, and gave her the strength to never fear for her life again.
Only recently when she came of age did he accept her as his lover, but she is fully in love with him. Because of her Himejima, Cadre, and Devil heritages, she had become a powerful Nephalem with Divine abilities as a result of being a descendent of the 4th son of Ametarasu.
Shirone Toujou- Unlike Akeno, Romonus was not fast enough to intervene in her fate, and just as normal Kuroka escaped after killing her Master. Through a firm, but kind temperament he did not allow her to wallow in depression.
She never sealed her Nekushou Powers or Bloodline and the true actions of her sister were revealed. Despite her young age, she has already become a legendary 4-tailed Nekushou a never-before-seen event.
The knowledge of her sister's actions, her unleashed Senjutsu, and Romonus' constant support have made her one of his most loyal and loving lovers.
Vespera Carmial Bael- Vespera came to be from the secret relationship of Zekram Bael's grandson and a Pure Blooded Noble Vampire of the Carmilla faction. Her grandmother fed her lies about the fate of her parents.
The truth was that she killed her own daughter and Vespera's Mother. She lied that her Father raped her Mother when that was a lie. In vengeance, she murdered her Father only to be defeated and captured by Zekram Bael.
As punishment, her body and soul were broken down to form a Demonic Sword gifted to Romonus on his 11th Birthday. After getting in contact with her and the truth he released her after 8,000 years of suffering.
Now, one of his lovers and a very powerful Vampire Devil hybrid she is the oldest of his lovers.
Valerie Tepes- As part of his plans, he invaded the Tepes Faction to save Valerie and prevent her power from falling into Rizevim's hands. He used her Longinus to grand himself an immortal body, a self recovering Life Span, and immunity to Holy and Light Magic
Silvana Berith Cethin- Silvana is the direct result of a Pure Blooded Devil and a Noble Dullahan. Dullahans are the only Undead race that can produce offspring through their blessings from Arawan the Celtic God of the Dead.
She is the chosen one of Arawan and has all the abilities of her parents including Death Magic. She is 38, but rather reclusive, but still a brutal scythe fighter.
Seekvaira Agares- While she and Romonus got engaged on bad terms and against their wills they quickly made the best of their situation. Zekram's plot was broken and House Agares joined the Satan Faction instead.
Natsume Minagawa- Romonus saved Natsume and her friends before the Utsusemi Organization was started. He trained her extensively and through the years she began to fall for Romonus.
Now, she is his third pawn, after Kouki and Itsuki. Thanks to Griffin her Qiongqi, she can become rather violent out of nowhere.
Kuroka-Kuroka used to be Shirone's older sister, but as a result of Shirone's time in the Time Chamber, she is now the younger sister. When Romonus and Shirone found her, she instantly returned with them to be with her sister.
Quickly began to try to get into Romonus' harem for both his strength, good looks, and the fact Shirone wanted to share her mate with her sister. Romonus finds her very attractive and quite mature.
Walburga- Walburga is not considered one of Romonus' lovers but is rather his Sex Slave. Walburga is fine with the whole arrangement as she is into very extreme BDSM even more so than Akeno. Is more than happy to be sexually abused by Romonus.
Itsuki Hyoudou- Itsuki is the firstborn daughter of her parents and the oldest sister of her two stillborn brothers.
(Issei had two stillborn older siblings, in this universe, the roles were reversed and he was stillborn.)
Itsuki is a very outgoing individual and extremely talented, unlike Issei. When Romonus found her, he was pleasantly surprised and quickly manipulated her parents to allow her to go with him to become his Pawn. It took him four pieces and as the years went by and she matured, he found her very attractive like her Mother.