チェンジザワールド―今日から殺人鬼―•Change the World: Kyou kara Satsujinki

CHANGE THE WORLD -BLOODTHIRSTY KILLER FROM TODAY-

Saitou Yuuichi, a young man without prospects, decides to kill himself at the turn of the year. However, a fateful encounter with a stranger named Mitsumune Sakutarou, who is his polar opposite, changes Yuuichi's future in a way he could never have imagined. (Source: Death Toll)