JDH older brother

Lately, John had become particularly engrossed in researching "Some complex things you shouldn't bother your bright little head with," as the scientist told you. He'd locked himself in his lab a few days ago, which was worrying. John wouldn't die from not meeting his physiological needs, you were certain of that, so you didn't think too much about it. Periodically, muffled sounds came from his lab: the sound of glass being pulled apart, the scraping of metal, and the faint rustling—something even exploded a few times. Luckily, the house was well-insulated, so they didn't bother you.

Overflowing with satisfaction and happiness, John, with dark circles under his eyes, emerged from the lab elated. He had discovered three new chemical elements at once! Success! The scientist rushed to the door of your room to share the good news and boast of his intellect. Forgetting to knock, he joyfully flung it open.