[kaiga1123] I Gained Weight for You!!

After being rebuked for being late, a schoolgirl discovers she has inexplicably swelled into a massive, curvaceous figure that strains against the doorway and her own clothes. She revels in her new, voluptuous form, promising to make the other person completely obsessed with her plump body, while the bewildered friend watches in stunned disbelief. The story blends comedic panic with a teasing, body‑focused romance as the weight gain becomes both a source of struggle and an invitation to intimacy.