Saika has long admired her senior Kenichi. But since Kenichi has a girlfriend, she had to give up and love him from afar. However, after overhearing a conversation between Kenichi and his girlfriend, it seemed he was not happy at all. One day, since it was the end of the month, Kenichi was trying to finish his work. Unexpectedly, by the time he finished, he had missed the last train. Saika then invited him to stay at her house for the night, and with no other options, Kenichi agreed. Seeing Kenichi sleeping on the sofa, Saika couldn't control herself and kissed him. Kenichi suddenly woke up and realized what had happened. Saika decided not to back down anymore; she wanted to express her feelings to her senior and bring him happiness!