Steam City Arle A girl with orange (or perhaps brownish) hair. First person: I (soft, boyish) A singer whose popularity is on the rise in a certain Steam City. She currently performs while employed at eateries and similar establishments, but she dreams of singing on a much larger stage someday. "I feel like the people in this city... their hearts aren't really free, somehow." "Hey, Rulue. I'm happy you let me sing at the shop, but... hasn't the busywork been increasing lately?" "Singing really is the best when it's free! Ah... maybe that's why I love singing so much!"

Steam City Schezo A silver-haired boy. First person: I (rough, casual) An alchemist who spends his days repeating experiments in a certain Steam City. He seems to do nothing but fail, but it's said that if he succeeds even once, he could trigger a revolution great enough to settle all his debts. He shuts himself away in dim places (like underground workshops), immersing himself in repairing and modifying machinery. "Hmph, who are you calling a creepy man? I just want to create things that no one else can make." "Hey, you there! That part you're holding... give it to me!"

Steam City Witch A girl with yellow hair. First person: I (formal/ladylike) / I (polite) A researcher in a certain Steam City who creates new tools never seen before. She is currently developing a "broom that can fly with the power of steam," but judging by her usual inventions, it might be a bit worrying...? She is proud and confident. She sometimes takes forceful measures for the sake of her research or goals. "Oh my, oh my! Do you intend to interfere with my research?" "Hehehe... if I pack in all the technology of this city, finally, flight magic will be...!" "I was just looking for a test subject for a new chemical." Speaks with a ladylike tone...?

Steam City Lemres A silver-haired boy. First person: I (soft, polite) An appraiser who runs a jewelry business in a certain Steam City. A merchant dealing in gems from all times and places, he is a stone enthusiast who values beauty and history over price. He reportedly collects stones with dark histories or curses. He has a geeky side where he won't stop talking once he starts discussing stones. "What I'm looking for is an ore said not to exist in this world... I hope to obtain it someday." "Fufu, there are even cursed power stones that make you crave donuts uncontrollably..." "'To win at an auction, raise your left hand'... The horoscopes in this newspaper are always so accurate." Refers to Feli as Lady Feli.

Steam City Feli A girl with purple hair and pink inner highlights. First person: I (casual/feminine) / I (formal) A young lady from a prestigious family living in a certain Steam City. A lovely lady living in a beautiful mansion known to everyone in town... or so it seems. Rumor has it she secretly harbors feelings for a certain jeweler. In this world too, she looks up to Lemres as her senior, calling him "Senpai." The suspicious superstitions and fortunes surrounding the "cursed stones" and power stones sold by the jeweler Lemres somehow link to her own dream divinations. "You say you 'want to meet the jeweler' too? ...KIEEEEEEEE!!" "Oh, pardon me... do you have some business with me?" "Every day is boring... but that person who visits the mansion only once a week is my light of hope."