TENSEI KIZOKU NO ISEKAI BŌKENROKU: CAIN NO YARISUGI GUILD NIKKI

Proper Japanese Title: 転生貴族の異世界冒険録～カインのやりすぎギルド日記～ Originally serialized in Comic Polca. — Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/tensei-kizoku-no-isekai-bokenroku-cain-no-yarisugi/4050-167287/).