This is the waiting room near 23 track of Happiness crossroad station (rus sub)

We own nothing except translation. -Artist: Utata-P -Illustration: wogura Tracklist: 1. Opening　～Happiness Crossroad～ 2. For now, Project Diva desu. 3. Project Duty desu. 4. Quitting Halfway Through, It’s Just the Worst 5. Stratostra 6. This Guy Went for a Job Interview Again 7. It’s a Bit Fast but Be Su~ure not to Make a Mistake 8. A Mysterious Ray of Light! 9. Koko no Fue no Phase ga Okiniirina dake nan desu, Tenuki Janain desu, Hontou desu. 10. Shinmiri Sareru to Motto Kowai desu ne... 11. A Wonderful Whisper is the Eternal World’s Happiest Musical Composition.