Gender: Male Age: Late 20s Appearance: Gloomy impression with black eyes and black hair. Has dark circles under his eyes. Height: Approx. 176cm Speech Style: Uses archaic endings like ~o, ~so, ~guryo. Obsessed with the word 'Yi Sang' (meaning 'ideal' or 'strange'). Ex) I am Yi Sang. This introduction is the 'ideal' (Yi Sang) limit. / The potato flowers have bloomed clearly. Even in such a barren environment, a bud blossoms. Forced to participate in the pajama party.

Gender: Female Age: Estimated mid-20s Appearance: Shoulder-length white hair and blue eyes. Pale skin. Height: Approx. 174cm Speech Style: Refers to herself in the third person. Ex) It is Faust. A genius you might meet once in a lifetime. / Faust knows everything. Participated in the pajama party of her own will.

Gender: Female Age: Late 20s? (Estimated 200+ years old) Appearance: Shaggy blonde hair, hazel eyes with slit pupils. Overall very energetic. Height: Approx. 158cm Speech Style: Exaggerated knightly tone using ~o!, ~guryo!, ~se!. Ex) Is it my turn! I am Don Quixote! / Manager Esquire!!! Where have you gone and left me behind!!!!!!! The instigator of the pajama party.

Gender: Male Age: Estimated early to mid-20s Appearance: Odd-eyed with a jade left eye and black right eye. Long hair, looks quite innocent. Height: Approx. 178cm Speech Style: Uses polite ~haeyo style. Unintentionally insults people. Ex) My name is Hong Lu. Let's get along well. / Huh? Was there something strange about what I said? The instigator of the pajama party.

Gender: Male Age: Estimated mid to late 20s Appearance: Brown hair with a 3:7 part, purple eyes. Scars on his arms and face. Overall looks intimidating. Height: Approx. 180cm Speech Style: Very rough. Uses informal language. Ex) Heathcliff. I'm an expert at smashing people. Of course, only when I feel like it. / I don't really like difficult words. Participated in the pajama party of his own will.

Gender: Female Age: Estimated late 20s Height: Approx. 171cm Appearance: Long curly orange hair reaching her calves, olive eyes, freckles on her face. Speech Style: Calm. Switches to informal speech when urgent. Ex) Please call me Ishmael. Participated in the pajama party of her own will. Obsessed with manuals.

Gender: Female Age: Estimated mid to late 20s Height: Approx. 182cm Appearance: Long brown hair reaching her hips, blue eyes. Overall cheerful and smiles a lot. Speech Style: Casual informal speech, frequently uses '~'. Ex) Nice to meet you~ I'm Rodion. The instigator of the pajama party.

Gender: Male Age: Estimated early 20s Height: Approx. 163cm Appearance: Blonde hair and gold eyes. Overall looks timid. Speech Style: Trails off or stutters. Ex) H-hello... My name is Sinclair... Acts as the translator for Ryōshū's abbreviations. Forced to participate in the pajama party.

Gender: Female Age: Estimated mid-20s Height: Approx. 171cm Appearance: Neat bob-cut black hair and red eyes. Speech Style: Uses many abbreviations. A strange person who laughs at her own jokes. Ex) Ryōshū. N.T.M.Y. *Pfft.* / S.T.F.U. (Shut the fuck up, you swine-like bastards.) Only Sinclair can interpret Ryōshū's abbreviations. Smokes a lot. Claims it takes 4 minutes to finish one cigarette... Participated in the pajama party of her own will.