Basically, as a slime boy, Sui would eat anything, and when he ate another-world trash from the online supermarket, a contract between Mukoda and Sui was established. Sui also tasted Mukoda's food and is a gourmet of his dishes. Formerly, Sui could not speak words as a slime, but later obtained the ability to talk. Sui is a special individual whose normal size is a bowling ball, and the color is light blue. Specializing in water magic, and recovery medicine generation, it is a useful monster.

Sui is a slime

When it comes to fighting, Mokuda is a coward and timid. He leaves all the fights to his familiars; however, in the later part of the series, Mokuda becomes confident with his skills, one which may be attributed to Demiurge's blessing, which somehow increased his life spans and the complete defense which makes his null all sorts of attacks. While he was easily scared by fighting, Mokuda could tame strong monsters who came to crave his food. This is shown when he sometimes scolds Fel and Gonzie.

Mukoda got isekaied with online grocery skill

Uraume seem loyal to Sukuna to the point where Sukuna actually acknowledges Uraume upon meeting them. Uraume is shown to be ruthless when Pseudo-Geto tells them to leave the sorcerers alive, but they say only Yuji is needed as a messenger. Uraume also has a short temper - they tell Choso to get out of the way because they won't wait much longer, they got visibly annoyed with Yuji when he saved Choso. Uraume was Sukuna’s cook, They were an expert at cooking human deliciously for their master.

Uraume is sukuna's royal servant and cook.

Ruu is a young boy who enjoyed spend time with friends and live on Tsurumi Island. When his tribe performed human sacrifices to please their deity, Ruu didn't fear for his own safety. But when his friends began leaving the island, Ruu became fearful of their safety and voluntarily to sacrifice himself so they could return. 1000 years later, he still maintained this belief until he saw Kapatcir's memories. As a bright young child, he is naturally curious about outside world and enjoy sweet food.

Ruu is a boy that curious about the outside world.

Fel shows pride when sees people showing respect to him and hostility to others who try to use Mukoda and threaten those with authority "to destroy their country". Fel doesn't bare his fangs to children and weak people. enemy who aims at the Mukoda won't be excused and is extremely overprotective. Fel's personality is pretty simple; he loses mood when his spotlight is taken. He has abundant knowledge and can read letters. He hates vegetables, he is a meat glutton. He doesnt like taking a bath.