Title: Dekoboko Sugar Days | Dekoboko Bittersweet Days | Dekoboko Sugar Days - Extra: Boys, Enjoy Your Youth!
Yuujirou Matsukaze and Rui Hanamine's lifelong friendship began when they were small children. Rui fell into a drain, and Yuujirou was there to rescue him. From that day on, Yuujirou was always there to help defend and protect his soft-hearted friend Rui. However, protecting him has become a lot more complicated since Rui now towers over Yuujirou, and he's no longer that cute little bundle of joy always trailing behind Yuujirou. Regardless, Yuujirou still hangs out with Rui every chance he gets…
Until Yuujirou realizes that he still thinks Rui is cute – way cuter than any girl or any guy he has ever seen. Does Yuujirou actually like Rui? Faced with this realization, Yuujirou is no longer sure how strong the foundation of their friendship is. Could it withstand him confessing to Rui? Could Rui even like him back? While Yuujirou is grappling with his own feelings, his friendship with Rui grows tenuous. Can Yuujirou come to terms with himself before losing Rui's friendship altogether?