Original Korean Title: 악몽선생
Transliterated title: Akmong Sunsaeng
International Title: Nightmare Teacher

Also known as:
Night Teacher
Nightmare High
悪夢先生 (Japan)
Professor de Pesadelos (Brazil)
Le professeur du Cauchemar (France)
https://www.imcdb.org/movie_6209442-Akmong-Sunsaeng.html

Original Korean Title: 미스터 하트
Transliterated and International title: Mr. Heart

Also known as:
Sr. Coração (Brazil)
Мистер Сердце (Russia)
https://www.imcdb.org/movie_13278246-Mr-Heart.html

Original Korean Title: 검은 달빛 아래서
Transliterated title: Geomeun dalbich araeseo
International Title: Under the Black Moonlight
https://www.imcdb.org/movie_7162436-Under-the-Black-Moonlight.html

Original Korean Title: 너의 시선이 머무는 곳에
Transliterated title: Neoui siseoni meomuneun gose
International Title: Where Your Eyes Linger

Also known as:
Там, где замрёт твой взгляд (Russia)
Onde Seus Olhos Se Prolongam (Brazil)
https://www.imcdb.org/movie_12418132-Where-Your-Eyes-Linger.html

Original Korean Title: 글리치
Transliterated title: Geullichi
International Title: Glitch

Also known as:
Сбой (Russia)
Anomalii (Romania)
グリッチ －青い閃光の記憶－ (Japan)
Anomalías (Spain)
天外謎蹤 (Taiwan)
Глюк (Ukraine)
Lỗi Ký Ức (Viet Nam)
خطأ تقن (United Arab Emirates)
https://www.imcdb.org/movie_14735382-Geullichi.html

Original Korean Title: 구타 유발자들
Transliterated title: Guta-yubalja-deul
International Title: A Bloody Aria

Also known as:
暴力事件誘發團 (Hong Kong)
殴打誘発者たち (Japan)
Кровавая ария (Russia)
https://www.imcdb.org/movie_821462-Guta-yubalja-deul.html

Original Japanese Title: 満月をさがして
Transliterated title: Furumûn wo sagashite
International Title: Finding Full Moon

Also known as:
달빛천사 (South Korea)
尋找滿月 (Taiwan)
https://www.imcdb.org/movie_823967-Furum%C3%BBn-wo-sagashite.html