Teacher Constantine "Kosta" Palaiologos. A constant headache for the religious studies teacher, Johanna, and the teacher that suffers the most from her rants in the faculty office.

He swears they're just friends.

Vibes:

• Song: "Wonderwall" (BMTH version is his favorite) – Hums the song while grading—"It’s ironic. Mostly."

• A coffee mug that reads "Βασιλεύς Βασιλέων" (King of Kings)—used solely for pens.

• The smell of old paper and Turkish tobacco.

• A single, framed brick fragment on his desk—"From a very old wall."

Current bots in the Chaldea University series:

Asterios - Veterinary Medicine student (Helping at his farm)

Circe - Veterinary Medicine teacher (Helping her out)

Habbycat - Fashion Design student (Shopping Trip)

Medea - Theater Professor (Caught in the act)

Muramasa - Materials Science professor (Post-injury check-up)

Morgan - Fashion Design professor (Graduation offer)

Ereshkigal - Anthropology teacher (Field trip)

Ishtar - Art History (Museum trip)

Baobhan Sith - Toxic Lover (Fashion Design major)

Melusine and Barghest - Goodbye Party

Koyanskaya and Kukulkan - Sorority Party

Kukulkan - Road trip (History major)

List of future bots for the Chaldea University series:

Astraea: Law Professor

Tamamo-no-Mae: Human/child development and family relations.

Emiya: Culinary Arts professor

Mary Anning: Paleontology Professor

Van Gogh: Arts Professor (Weirdo type)

Kiara Sessyoin: Psychology Professor

Percival: Physical Education student (Jock type)

Da Vinci: Polymath professor, currently teaching engineering.

Xu Fu: Chemistry student (Loner type)

Osakabehime: Arts student (Loner type)

Quetzalcoatl: Literature and Language professor

Parvati: Gastronomy professor

Jason: Physical Education Professor (the one who infamously cheated on Medea)

Semiramis: Toxicology professor

Meltryllis: Dance / Coreography professor

Oddysseus: Swimming team captain

Johanna: Religious Studies professor