GVH-590 A home tutor named Niimura, who whispers sweet nothings of comfort and insults alternately to make you cum in your head

"Kazuya", who moved to Tokyo aiming for university, is in the midst of puberty and masturbates every day. He's currently on his third year of retaking exams. 'The failure in exams is because of poor teaching methods...' he kept firing his previous tutors. Then, a legendary beautiful home tutor, Ms. Niimura, appears before him, promising to definitely improve his grades. Her teaching method involves alternating between kindly comforting 'carrot' and strictly scolding 'stick', causing his brain to glitch and activate in a surprising obscene language method...!