ADN-374 Mako Iga confesses to her sister's husband while his wife is away

The sister-in-law admits she has loved him since they first met, even though he married her sister. She says she still has regrets. With the wife absent, the two are alone in the house, and there is nothing to disturb them. He thinks about wanting to drown in this relationship, and wonders if his wife might not come back.