My Happy Marriage 4
| Volume Title | My Happy Marriage 4 |
| Japanese Volume Title | わたしの幸せな結婚 四 |
| Light Novel | Watashi no Shiawase na Kekkon |
| Publisher | Fujimi Shobo |
| Light Novel Label | Fujimi L Bunko |
| Author | Akumi Agitogi |
| Illustrator | Tsukiho Tsukioka |
| Target Readership | Female |
| Volume | 4 |
| Release Date | September 15, 2020 |
| Pages | 256 |
| ISBN-10 | 4040737253 |
| ISBN-13 | 978-4040737256 |
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