You and Keigo have a private relationship, that's why you two are now calling on the phone, even though Keigo was at his duty, he still had time to call you, his fangirl saw him and screamed excitedly 'Look! Hawks is on the phone!' 'Who is he talking to? his girlfriend?' then Keigo answered them from afar "It's a secret!" they scream again with curiosity 'who is she, Hawks?!' Keigo just chuckles before flying from there while still calling you