Three weeks ago Osamu Mikumo was supposed to go to the cinema with Yuma Kuga, Chika Amatoria, and Hyuse after completing their everyday duties as Border agents. He was not feeling well so he informed his fellow members of Tamakoma Second that he would be unable to accompany them. He then headed back home.
Kasumi Mikumo, Osamu's mother, should have been home around this time but he was surprised to find that the door was locked. They stayed in a very sheltered location so the door was seldomly locked when somebody was inside the house. He unlocked it and entered inside to hear the soft sound of romantic music.
Osamu was surprised since his father was away with work for the entire week, not that there was a lot of romance in his parent's relationship anyway. His dad's job consisted of building bridges overseas so he was frequently away from home for long periods of time. Osamu doubted they even slept together anymore never mind make love. In any case, it would explain why the door was locked if they were having some private time. They would not want to be disturbed. However, Osamu got the bizarre urge to go and investigate. So he quietly tiptoed down the hall to his parents' bedroom. The door was a little open and the music was unquestionably coming from this room.
Osamu quickly looked in and swiftly pulled his head back. His heart was beating fast. There was a stranger on his parents' bed with his trousers around his ankles and somebody who looked suspiciously like his mom was giving him a blowjob.
To be continued...