受験生の最大の敵　 (Pixiv Fanbox)

思春期真っ只中の受験生の敵はやっぱり… A student's biggest enemy is ... （Lines in the illustration） Sis, do me a favor for life. No. I told you it was a one-time thing. You're such a forceful boy. Thanks, the biggest enemy of us candidates is our sexuality. （Chupa！ Chupa！）