Kamen Rider W x Love Live! Sunshine! Sunshine's Wind

After W/Double final battle, all had went to peace in Futo-city, year later, Shotaro and Philip got married and had kids, the Dopant problem had risen again and where after their children.

To protect them, they sent they're kids to Uchiura to an old friend of theirs, Himari Takami, and let them grow up their, but the Dopant followed them their but remained quiet for years.

Once they hit the age of 16, they're Fathers sent them a brief case with 6 USB devices and a item which could hold 2 of them, follow as Y/N and Charles become the "Hard-Boiled" Kamen Rider!