Tandem Lover by Tetsuro Kasahara — Completed

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Chapter 1: Koda x Shima released Apr 24 '12
Chapter 2: Kugawa x Sana released Apr 7 '13 Glasses
Chapter 3: Kato x Aira released Jun 18 '13
Chapter 4: Meru x Shima released Jun 20 '13
Chapter 5: Mura x Tarin released Dec 8 '13
Bonus Chapter: Sabella x Rumi released Dec 9 '13 Age gap Student x Teacher