After the defeat of Aizen, Ichigo has lost his superpowers but not his skills so he's been hiring himself out to any sports team looking for a strong player. When Nagisa Hazuki approaches Ichigo to join the Iwatobi High School Swimming Club, something piques Ichigo's interest....

“Did you ever think about any of us when you were away in Australia?” Nagisa asked cheerfully, years later at a joint swim practice. “I tried not to,” Rin said dryly.