START-586 Arakawa Sora: I Have to Fill a Beer Cup with Semen in One Week or I’ll Be Expelled from School, So I’ll Do My Best to Cum on Your Face

Arakawa Sora has been appointed as the class's 'sex slave' due to her lack of contribution, and is told that if she doesn't collect a full beer cup of semen within one week, she'll be expelled from school. Desperate to avoid expulsion, she reluctantly begins collecting semen. Though initially shy and embarrassed, she realizes this could be a chance to grow as a woman—'If this makes me mature, I'll do it with all my heart!'