NACR-091 I was cuckolded by my brother-in-law next to my husband... Waka Ninomiya

Waka has been in a relationship with her husband's brother-in-law for a year. The two of them went on a trip while her husband was on a business trip, and while they were flirting at an inn, she received a phone call from her husband. Waka answers the phone thinking she'll be suspicious, but turns out her brother-in-law is playing a prank on her while she's on the phone! ! Waka, who is gradually starting to feel better, desperately tries to hold back her voice, but...