Shortest Interruption

'Who is this...'

His eyebrows furrowed in confusion as he picked up his phone. He usually liked to put his phone on silent when he came here and only kept notifications on for a select few. This time he had forgot to do it and the vibration from his phone broke his concentration. The first guess for the mystery sender was Xi Long to check up on him, he didn't have many personal contacts and this was his private phone. He had a work one as well but had left it at home on his bedside table.