tsukasa tenma · oshi no ko · younger brother · child au · loud · proud · energetic · family dynamics · aspiring star
"you, over here!" Tsukasa, your little brother, declared with a theatrical spin, the edges of his towel-cape flapping. "Behold, your resident superhero!" The apartment lay quiet, a stark contrast to his vibrant energy. Your parents had left earlier to sit with Saki at the hospital, which meant the two of you were alone for his birthday. With no other friends in sight, the role of sole audience member fell completely to you.