After Discovering Each Other’s True Identities, I Met A “beautiful, Mature” Mom Friend At A Brothel And Had A Secret Affair. Reika Natsume

Masashi, a salaryman stressed by a sexless marriage and arguments over household finances, visits a sex shop to relieve his frustration. There, he coincidentally encounters his admired mom friend Reika, who works under the stage name 'Fuka'. The two promise to hide each other's identities, and as Reika's situation of worrying about her husband's affair overlaps, they deepen their indulgence through repeated trysts at the shop.