１１２２
Ichiko and Otoya are a friendly couple in their thirties after seven years of marriage. They have no children and are no longer physically intimate. To keep their marriage going, they choose a rule that permits outside romance. Otoya becomes absorbed in his approved relationship with Mitsuki. Watching him changes Ichiko's own feelings about desire, jealousy, and married life.
Volumes
| Cover | Vocabulary List | Total | Unique | Used Once | New ⓘ | Density ⓘ | |
|---|---|---|---|---|---|---|---|
| Series | 5,210 | 2,312 | 1,501 | 64% | 12.41 | ||
|
１１２２（１） | 2,739 | 1,487 | 1,053 | 70% | 1,487 | 12.01 |
|
１１２２（２） | 2,471 | 1,289 | 883 | 68% | 825 | 12.80 |