Ria, with her exceptional communication skills, bright personality, and kind heart, was a woman Masato admired ever since they met in university. She was the first woman he truly loved.

Their love blossomed, and after getting married, Masato found himself living in a state of pure bliss with his beloved wife.

However, the more happiness he felt, the more a shadow crept into his heart.

He began to question if they were truly a match, wondering if there was a man more suited for Ria.

His anxieties festered, leading him to develop a fixation on being cuckolded, further deepening his internal struggle.

Ria, sensing his turmoil, said, "If you want it, let's do it... cheating sex."