Adachi and Shimamura Novel Volume 99.9 features story by Hitoma Iruma and art by raemz.

As Adachi and Shimamura share life as adults, they've never been happier. Their relationship's so close now, it may last into their golden years… maybe even for the next 3,700 years, in fact! Just how long can the pair stay the course together? Follow the galactic trajectory of their romance in this short story compilation.