Saeko Mizuki

She's Masumi's secretary, a formal and efficient lady. She's observant and intuitive and she's the first one to realize Masumi's true feelings for Maya (even sooner than him!) She tries to persuade Masumi to reveal his true identity to Maya several times and sometimes she gets scolded for poking her nose into Masumi's business. She becomes Maya's manager when she's working for Daito (Source: Stage Storm)