I went too far and ended up breaking my big sister... She couldn't stop trembling and convulsing! After failing to land a job and becoming a NEET, I finally got hired as a massage therapist, taking my first step into adulthood. However, there were various training tasks required before official employment, and I had to complete them all to become a full staff member. Desperate to secure the position, I asked my sharp-tongued, assertive gyaru older sister to let me practice oil massage on her. And while at it, I secretly added in a premature ejaculation treatment session too... (laughs) Even though she yelled at me, calling me out for being ridiculous, she stayed with me until the end—so I got carried away and went too far...