Mom, wondering who would fill the loneliness inside me, I married into my new husband's home with my son Kazuya. Since this was a remarriage for both of us, my new husband had a son, Tomoyuki, one year older than Kazuya. My husband owned a large estate but frequently traveled overseas for work, leaving him away from home for long periods. Amid this lifestyle, I began keeping a secret. Tormented by guilt yet unable to suppress my desires, I found fulfillment in a forbidden relationship with my stepson. This hidden affair, born from daily life, became the beginning of my crumbling sanity.