Uchi no Ani wa Ninja desu * Ninja de wa nai

I wish I had a brother like this! The hilarious everyday life with a slightly (?) eccentric brother nicknamed "Ninja" " I'm going to the weapons shop, is there anything you need?" -- The brother, nicknamed "Ninja," is taciturn, expressionless, and it's impossible to tell what he's thinking. The brother's actions and words are full of things to comment on, his sister is the sensible one (?), and their easygoing mother also makes an appearance, along with their beloved dog, Coco. Their ordinary daily life is somehow hilarious! A comic essay full of family love and laughter from a hilarious brother and sister!! (Source: Kadokawa, translated)