The NinNinDays romance adventures bring trained ninjas into contemporary city life. The first centers on Sumire; NinNinDays2 introduces Suzuran and Kikyō and includes Sumire as a returning character. Each game has its own central encounter and edition history.
Works in this series
Dates describe documented releases. Follow-up stories based on different endings need not form a single consecutive timeline.
| Game | Relationship | Documented release | Developer |
|---|---|---|---|
| NinNinDays | Related work | August 8, 2019 (edition) | qureate, iMel Inc. |
| NinNinDays2 | Related work | November 18, 2021 | iMel Inc., qureate |