JIC-599 Friend's Daughter-in-law Nana Aida

Nana was happily married to her college classmate Takashi. I live in a company house, but it was comfortable, and the presence of Ryuichi, my husband's best friend who lives next door, was also reliable for Nana. One day, the news of the alumni association arrives from the circle that Nana, Takashi, and Ryuichi belonged to when I was in college. Nana and Ryuichi are going to attend together with Takashi who can't go to work. However, it was not the old friend's remiss that dominated Nana's head at the reunion, but the love for Ryuichi who should have thrown it away once.