Medius the Innocent
Full art:

Appearance:

Left: “Front”
Middle: “Back”
Right: “In his own way, he thinks about all sorts of things very often.”

Appearance #2:

“About 16 years old
About 165 centimeters [tall]”

Description:

“He cannot control his power, which has foreseen all sorts of future prophecies from a young age.”

Cape/mantle pattern:

Magic circle:

Patterns in the accessories on his chest:

Business:

Bottom: “Hand-made accessories (featuring good-luck charms)”
Medius: “What do you think? I can give you a discount~”

Group photo:

“Medius is currently in a different class from the other 3. However, they are still great friends”

Skipping class:

Medius: “I’m skipping class!!”
TL note: [The lines from Medius’ friends are too small to read properly. Medius’ line may be conjugated slightly differently depending on this context]

Principal:

Description: “School principal”
Principal: “I found you!! You’re skipping class here again!!”

Principal #2:

“Huh? Is that the school principal?”

Artmegia Finemelt
Full art:

Hair:

Top: “A rainbow-colored hair maiden”
Bottom: “Iridescence”

Stole:

Regular student outfit (with side view):

Elite uniform:

Height:

“Because she also wears heels, her height is on the taller side”

Ink satchel:

“The ink moves on its own”

Shyness:

“When she talks with someone that isn’t one of [her 3 friends], she starts acting like this”

Glass pen-sword:

Hobby:

“Avant-garde”

Relationship with Medius:

Finemelt: “For some reason, she acts like an older sister towards Medius”
Medius: “Is playing along”
Top right: “They are [classmates/of the same age]”

Source.