imouto_wa_kanojo_ni_dekinai_no_ni
A 5-volume romcom light novel written by Kagami Yuu (鏡遊 X Account) with illustrations by Sankuro (agoitei) and published by Dengeki Bunko. There's also a manga adaption drawn by chikuwa.
A 5-volume romcom light novel written by Kagami Yuu (鏡遊 X Account) with illustrations by Sankuro (agoitei) and published by Dengeki Bunko. There's also a manga adaption drawn by chikuwa.