Hikari, a big-breasted sister-in-law, came to stay at her brother-in-law's house for sightseeing. While living together, my brother-in-law has no choice but to be worried about Hikari's chest. He was a brother-in-law who endured the temptation he wanted to push down, but one day he couldn't stand it and stole his wife's eyes and locked Hikari in a closed room and pressed for a relationship. Hikari feels bad for her sister.
