This is a secret memory I will never forget. My husband's best friend, Koichi, came to visit our home while he was on a business trip. Koichi is five years older than my husband and is like an older brother to him. Seeing my husband's big smile as we reunited after a long time, I also felt happy. However, before I knew it, I was drawn to Koichi's masculine charm, something my husband didn't have. The more I thought it was wrong, the more I couldn't suppress my burning desire...