It was from an argument with her parents. That's all that's known. About donating blood though, you can be paid to sell plasma and when donating blood, there's usually snacks to help you recover energy. Since blood donation is usually only allowed once every few weeks, I'm gonna go with the theory that she sells plasma to buy food with
I can also drink all the tea I want too~You see, I can eat as many snacks as I want~Eh?Shuuko-chan, your hobby is donating blood, right? Do you like volun-
teering? Is it because you're nice?Shiomi Shuuko ① My hobby is blood donation