Before dissecting the "new start" aspect, it is essential to understand the gravitas of the talent involved. Momona Koibuchi entered the JAV scene with a specific archetype: the girl-next-door with a subtle, knowing smile. Known for her natural charm, expressive eyes, and a performance style that balances innocence with burgeoning sensuality, she quickly garnered a loyal following.

For three years, Momenta had watched the finals from the sidelines, her heart syncing to the rhythm of the soaring drones and the hum of the magnetic rails. She was a prodigy in robotics, a brilliant engineer who could coax any circuit into life. Yet, when it came to stepping into the cockpit herself, she always felt the weight of the unknown—until the day a cryptic message arrived on her holo‑pad.

Released on July 30, 2024, under the SOD Create label, START-112 stands as a significant entry in Momona Koibuchi's filmography and a prime example of the "story-driven" JAV genre that SOD is known for. The film's subtitle, roughly translating to "Training to Ejaculate with a Childhood Friend," sets the tone for a narrative that explores nostalgia, rediscovery, and the complex boundaries of long-term friendships. It is a production that aligns perfectly with Koibuchi's brand of combining relatable scenarios with intense personal performance.