Ryoma Takebayashi/Relationships

Father
Ryoma didn't like his father. Primarily because the lunatic forced him to learn martial arts and whacked the back of his skull with a baseball bat whenever he couldn't do anything perfectly. However, this was primarily the fault of Earth's God, who used Ryoma's father as one of many puppets to drive him crazy.

Mother
Ryoma loved his mother dearly. She was the only light in his dark life. After she died, Ryoma didn't have much to live for.

Gain
One of the three gods summoned Ryoma to Seilfall.

Kufo
One of the three gods summoned Ryoma to Seilfall.

Lulutia
One of the three gods summoned Ryoma to Seilfall.

Tekun
God of Wines & Craftsmanship.

Serelipta
God of Fishing & Ports.

God of Earth
They never met, but said God wanted to turn Ryoma into a serial killer, treating him like an RPG character. For this reason, Ryoma had a living hell of life on Earth. He was given national level [God Trials] that were meant to make Ryoma crack and go crazy, from his father's abuse, the robbers' families painting him as a bad guy, and his abusive black company job. However, he endured them all, and God was forced to give him blessings as a reward, though he never revealed this to him. Eventually, the God got tired of Ryoma not even committing suicide and forced him to sneeze and get the fatal hemorrhaging by hitting the back of his head

Reinhart Jamil
Ryoma first meets Reinhart in the Forest of Gana.

Eliaria Jamil
Ryoma first meets Eliaria in the Forest of Gana, introduced by her father, Reinhart, along with her mother, Elize, and her grandfather, Reinbach. They soon became close friends. When she asks, he teaches her how to choose her first slime familiar. When Ryoma finds out that she has trouble controlling her magic, he helps Eliaria learn by teaching her how to "play with magic". In the anime, Eliaria also helped Ryoma establish his shop.

Elise Jamil
Ryoma first meets Elise in the Forest of Gana, introduced by her husband, Reinhart, along with her daughter, Eliaria, and her father-in-law, Reinbach. Their relationship is like that of mother and son. Elize was impressed to see Ryoma's taming skills the first time she met him. She was glad when Ryoma decided to join them on their journey to the city.

Reinbach Jamil
Ryoma first meets Reinbach in the Forest of Gana, introduced by his son, Reinhart, along with his granddaughter, Eliaria, and his daughter-in-law, Elise.

Worgan
Adventurer Guild master. He oversaw Ryoma's exam for the Adventurer's Guild because the whole Jamil Household was there. Since the duke's family was there he couldn't let someone else be the proctor for the exam. Later on he asks Ryoma for some help after finding out that he cleaned Miya's house, about the communal bathrooms incident.

Jeff Grange
Jeff was first introduced when he helped Ryoma out in keeping guard when he was cleaning the communal bathrooms.

Miya Catt
Miya was first introduced in Ryoma's first adventurer's job which was to clean Miya's house where he used his slimes to clean it. She later helps him in guarding the communal bathrooms so no one enters the vicinity while Ryoma cleans it.

Welanna
Welanna was first introduced when he helped Ryoma out in keeping guard when he was cleaning the communal bathrooms.

Leipin
Leipin was first introduced when he helped Ryoma out in keeping guard when he was cleaning the communal bathrooms. He is fond of Ryoma's slimes and researches them when he is with him.

Beck
Beck was first introduced when while Ryoma was on a stroll he saw a group of kids pulling a carriage full of things that they were going to take to the church. Ryoma helps them out and visits the church with them.