- Mettamatika vol. 1,5: Gacha Kombinatorik
- Mettamatika vol. 1,5: June Huh
- Mettamatika vol. 1,5: Paul Erdos
- Mettamatika vol. 1,5: Scara's Mathematical Adventure in Inazuma
- Mettamatika vol. 0: Error Correcting Code
- Mettamatika vol. 0: Petualangan Cirno di 7 Jembatan Konigsberg
- Mettamatika vol. 0: Pi
- Mettamatika vol. 0: Survivorship Bias