His own little brother was a lazy bum with an utterly terrible personality who loved spending money. If such a little brother lost the family's protection, there was no telling when he might get himself killed out there. His little sister was adorable and perfect, but far too innocent. Without the Doma Family's protection, she might be lured away by bad people...
Like Sogo, for instance. Ahem!
Whenever he thought of that, Taihei Doma shook his head furiously. How could he speculate about his own little brother and sister like that? He must have been seeing things that day to mistake his adorable little sister for giving off the aura of a lazy bum. Yes, he had definitely been seeing things. No matter how unreliable Sogo was, he couldn't possibly turn Umaru into a lazy bum, could he?
Heh. Hehehe...
Wait a minute, it wasn't impossible! Maybe Sogo hadn't deliberately led Umaru astray, but little sisters grew up watching their Onii-chans' backs! If Sogo set a bad example, then with Umaru's innocent nature, she might imitate him. Being innocent was bad enough—what if she also became a lazy bum like Sogo!?
Whether it was his little brother or little sister, if either of them lost the family's protection, they would surely live miserable lives! Therefore, the Doma Family absolutely could not fall! For Sogo and Umaru's sake—as a perverted brother-con and sister-con, Taihei's blood boiled with passion.
There was no helping it. Sogo was already hopeless. If the Doma Family were handed over to him, then given how lazy and wasteful he was, the Doma Family might be gone in the blink of an eye. Umaru, meanwhile, was far too innocent. Besides, as her Onii-chan, how could Taihei possibly let his little sister step forward?
Thus, the responsibility of shouldering