The Appearance of Subject-tan (episode)

''Hi, we are the Subject-tan! Welcome and nice to meet you, user!''

The subjects are here, bonding with the user when they pop out someone's books and meet them in chibi form or magical form. The subjects' names are: Physics-tan, Math-chan, Chemistry-tan, and Misaki and Sakura.

It is the first episode of Trouble Math (series).