"Only I need to know about her". Kurimoto Nao, an ordinary office lady, was given invitation by her Junior, Kido to go to gym. When she went there, the trainer was Noto, a male trainer who was famous for his muscular and spartan madness. At first, Nao was desperate to look back at Noto, but Noto helped her when she was staggered. Then they get along well until going out for a meal....? A clumsy and hot Trainer VS a Trainee, an office lady who need love.