He swore he'd never fall in love again—but his no-strings arrangement has other plans.

Akira Takanashi, Maya's cousin, is a proper and studious college student carrying the scars of a painful first love. After being rejected by a teacher he fell for in high school, Akira turns to his friend-with-benefits, the notorious playboy and med student Shimagawa, for uncomplicated comfort—with no strings attached.

Shimagawa, however, wants something more than a casual arrangement, and Akira's carefully guarded heart becomes harder to protect when his possessive younger brother Jutta enters the picture. This Don't Be Cruel spin-off focuses on complicated adult relationships, heartbreak, desire, and the messy line between keeping things casual and falling in love.