While My Girlfriend Was Away For A Month, I Could No Longer Endure Celibacy, And Decided To Go For My Girlfriend's Best Friend Instead, And For 14 Whole Days... Moe Amatsuka

A couple who just started living together and her best friend, they are a threesome. Then, the couple's girlfriend will leave her cohabitation apartment on her overseas business trip, and the boyfriend promises her abstinence for a month and a half...