科西切 コシチェイ 카셰이
A Npc character from [[Arknights]]. A nobleman from the Ursus Empire, he adopted [[talulah (arknights)|Talulah]] as his heir after she ran away from Lungmen. 

In truth, [spoilers]Duke Kashchey is the actually antagonist of the Reunion arc and the reason for Reunion's radicalization from a peaceful group fighting for the rights of the Infected to an extremist militant group. After failing to convince Talulah of his Social Darwinist beliefs which led to Talulah killing him, Kashchey tried to possesses Talulah's body, which he succeeded after Talulah suffered several tragic events, including the death of her best friend [[Alina (arknights)|Alina]]. Now in possession of Talulah's body, Kashchey manipulates and radicalize Reunion and it's members as part of his plans to start a war between Ursus and the Yan Empire. Eventually he is defeated and his plans foiled after Rhodes Island learns the truth with [[Amiya (Arknights)|Amiya]] forcing Kashchey out of Talulah's body. Currently Kashchey is possessing a new body under the name [[koshelna (arknights)|Koshelna]].[/spoilers]
duke kashchey (arknights)