He receives various blessings from the gods and is reincarnated in another world while retaining his memories. He lives in a forest and conducts research on slimes. As he becomes acquainted with the people around him, including the Jamil Household, his innate skills and experiences from his previous life allow him to make a name for himself and earn their trust.

The daughter of the Jamil Household. Her ancestors on her mother’s side were from another world, and she has inherited their enormous magical power. She has a cheerful and sunny personality and is quick to open herself up to Ryoma. Under his guidance, her magical talents begin to bloom.

The head of the Jamil Household. He is concerned about Ryoma living in the forest all alone, so he and his wife Elise, along with the rest of his family, decide to meddle in his situation (with good intentions). Although he comes from a line of familiar mages whose ancestors came from another world to become animal tamers, he’s devoted to honing his swordsmanship.

Reinhart’s wife who comes from a line of skilled mages from another world. She’s very kind-hearted and constantly worries about Ryoma. She’s a highly skilled familiar mage and has made contracts with more than 100 wolf type monsters.

Reinhart’s father and former Duke of Jamil. He watches over Ryoma with Reinhart and the others. He’s an expert familiar mage who has made more than 10 contracts with dragons.

A friendly cat Beastkin adventurer. Ryoma receives his first job from her at the Adventurer Guild.

A dog Beastkin adventurer with a remarkable sense of smell. She’s an old friend of Miya’s and a former party member.

A tiger Beastkin adventurer who excels at enhancing magic (buffs) and fortification magic. She used to be in Miya’s party.