suzume mino x naho sumi daahlia's national treasure-class beauties co-starring! the four of us who were close friends since college days got married and became two couples. suzume, who married my best friend atsushi, is a super beauty, cheerful and popular. naho, who married me, a shy person, has a modest and gentle personality. the four of us decided to go on a hot spring trip as two couples. at first, memories blossomed, but gradually a strange atmosphere developed, and i and suzume and naho had a relationship with atsushi, and even more…