Saenai Heroine no Sodate-kata 12
| Volume Title | Saenai Heroine no Sodate-kata 12 |
| Japanese Volume Title | 冴えない彼女の育てかた 12 |
| Light Novel | Saenai Heroine no Sodate-kata |
| Publisher | Fujimi Shobo |
| Light Novel Label | Fujimi Fantasia Bunko |
| Author | Maruto Fumiaki |
| Illustrator | Kurehito Misaki |
| Target Readership | Male |
| Volume | 12 |
| Release Date | March 18, 2017 |
| Pages | 260 |
| ISBN-10 | 4040720776 |
| ISBN-13 | 978-4040720777 |