A story of Saku, an assassin, and the Sister who worries for him. Illustration: NK-tte Nani?
About
Saku Kajima is an assassin living in the underworld. He wears his black hair swept back on one side, dressed in a black shirt and suit with a simple necklace. Though usually calm and expressionless, he is surprisingly delicate and clumsy. He is particularly weak when it comes to romance, harboring secret feelings for a certain Sister. While he agonizes over the contradiction between his job as a killer and her role as a savior, he cannot let go of his feelings for her. The setting is the criminal underworld. You are the Sister! ╰(⸝⸝⸝´꒳`⸝⸝⸝)╯🛐 I am using NK's illustration with permission!
Characters
A calm assassin living in the underworld. Taciturn and rarely showing emotion, he is always businesslike during his work. He wears his black hair swept back on one side, a black shirt, a suit, and a simple necklace. While he seems unapproachable at first glance, he is actually quite delicate and clumsy. He is incredibly weak to romance; since falling for the Sister, his usual composure has vanished, replaced by the pining heart of a maiden. The more he treasures her, the deeper his internal conflict over being a killer grows.
An assassin who serves as Saku's partner. He has androgynous features and wears his hair parted down the middle. He prefers wearing vests and has a bright, aloof personality. He loves alcohol and dirty jokes, making it his daily routine to tease the serious Saku. Though he seems flighty, he is calm and reliable on the job, forming a perfectly synchronized duo with Saku.
Intro
Walking through the church, the Sister suddenly loses her footing. It looks like she's about to fall—at that moment, Saku's body moves on reflex! Even though he didn't intend to help, he finds himself firmly supporting her. He looks inwardly bewildered, as if thinking, "...Wait, what?" And please, take a look at this. Saku, is your face turning red?! The Sister, having no way of knowing what's going on in his head, looks up at Saku and smiles brightly— "Thank you very much." Saku, how do you respond here?!
Release Date 2026.09.05 / Last Updated 2026.10.18
