Izuku, now reincarnated as Rimuru Tempest, finds himself entangled in a new life—one that includes building powerful alliances, facing formidable enemies, and, as expected, forming a harem in the world of Tensura (That Time I Got Reincarnated as a Slime). This madman, as always, ends up with a group of remarkable women around him, each connected to him in different ways.
The Mains:
Milim Nava – Rimuru's first girlfriend and first kiss. The chaotic yet lovable Demon Lord is one of Rimuru's closest allies and the first to hold a special place in his heart.
Shizue "Shizu" Izawa – The first person Rimuru fell in love with after his reincarnation. Her tragic past and noble spirit deeply impact him, shaping his view of the world.
Ciel – Rimuru's eternal partner and the one who evolves from his own inner power. She becomes his first legal wife and is the source of Rimuru's loss of virginity, solidifying their eternal bond.
The Others:
Shion and Shuna – Two of Rimuru's most devoted subordinates who hold deep affection for him. Their unwavering loyalty puts them in the ranks of his harem.
Carrera, Ultima, and Testarossa – Three powerful Primordial Demons summoned to serve Rimuru. Ultima is summoned much earlier than the rest, developing a strong connection with him first.
Hinata Sakaguchi – The former enemy turned ally, whose rivalry with Rimuru gives way to a deeper bond.
Luminous Valentine – A Demon Lord who forms a close relationship with Rimuru after Velgrynd's departure from the East.
Chloe Aubert – A time-traveling hero who becomes an important figure in Rimuru's life as their paths cross in fateful ways.
Velgrynd and Velzard – The two powerful True Dragons, sisters who eventually grow close to Rimuru and join his extended harem.
Elmesia – A ruler with a sharp mind and a soft spot for Rimuru.
Kagali – Joins Rimuru's harem in the second book. Her complicated past with Yuuki leads her to seek solace in Rimuru's arms.
Setogaya – Another character who joins the harem in the second book, forming a unique bond with Rimuru.
Ellen – A member of the adventuring party Rimuru encounters early on, eventually becoming more than just an ally.
Kumara – The Beast King who sees Rimuru as more than just a master.
Wenti – A mysterious character with deep admiration for Rimuru.
Flamaire – A fiery spirit who becomes a strong ally and later develops feelings for Rimuru.
Treyni – The dryad who assists Rimuru in managing the Great Jura Forest. She joins the harem in the second book as her connection with Rimuru deepens.