|Esaka Sougen江坂 宗源|
|Hair||, Black, Eye Covering, Grey, Moustache, Parted to Side, Short, Thick Eyebrows|
|Eyes||, Blue, Hosome|
|Body||, Adult, Pale, Tall|
|Clothes||, Monocle, Necktie, Suit|
|Items||, Katana, Smoking Pipe, Walking Stick|
|Personality||, Mischievous, Refined, Secretive, Strange|
|Role||, Mentor, Shopkeeper, Warrior|
|Engages in||, Fighting|
|Subject of||, Death|
|Visual novels||Side character - Rewrite|
Side character - Rewrite Harvest festa!
|Voiced by||Touchi Hiroki|
A gentleman who runs an antique shop business in the city of Kazamatsuri. After meeting Kotarou on a certain occasion, he grants him advice that draws from his vast life experience. Although calling himself a "totally humorous, somewhat mischievous businessman", his gags oppositely charm everyone with fear.