Tsukasa Burogu

Tsukasa Burogu follows the daily life of Tsukasa, a young girl whose world revolves entirely around her older brother. Driven by an intense and unwavering fixation, she views every interaction with him not merely as sibling bonding, but as a fascinating subject for ongoing observation. Her deep attachment pushes her to treat their everyday relationship as a series of personal tests, all conducted under the guise of what she affectionately terms her "onii-chan experiment." To document her findings and chronicle her relentless devotion, Tsukasa maintains a dedicated blog where she meticulously records every detail of her project. From minor reactions to broader behavioral patterns, nothing about her brother escapes her watchful eye or goes unrecorded in her digital journal. The story centers on this unique premise, exploring how Tsukasa navigates her overwhelming obsession while translating her private experiments into public online entries. Through her detailed posts, readers are given a window into her singular focus, blending lighthearted sibling dynamics with the comedic extremes of her highly organized infatuation.