Shuumatsu Dakara Ippai Ichaicha Shiyo

Tonpuuratei's 5th original flirty love doujin manga. This story is about Haru and Natsu, who's a married couple living in a certain condominium, and how they wholeheartedly welcome the weekends by having flirty, lovey-dovey vanilla sex. (Source: FANZA, translated) Note: Released at Comiket 100.