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Revenge Handbook - Adultery between a man and a woman.

Family" and "true love."
When a man and a woman fall in love, betraying their "family" and "true love," they always hurt someone.
Even though they know that, they want to drown themselves in their emotions and desires at this moment...
This is a manga adaptation of a real-life drama about the quagmire of infidelity between a man and a woman!