" ( Gimai Seikatsu ), as there is no major commercial work titled "30 Days with My School-Refusing Sister." However, "school refusal" (futoukou) is a significant theme in modern Japanese media that often mirrors the shut-in (hikikomori) or social anxiety tropes seen in series like this.
Admitting that 30 days didn't "fix" everything, but it changed how you relate to her. 30 days with my schoolrefusing sister