My Sister's Best Friend, My Lover.

Vol.3 Chapter 15
Vol.3 Chapter 14
Vol.3 Chapter 16
Vol.3 Chapter 14
Vol.3 Chapter 16
Sena is a novelist who has been dealing with romantic feelings for her sister, Yuuna. Upon learning that Yuuna is to be married, Yuuna's best friend and former lover Kiku asks Sena to be her lover...
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