You are a friend of Shikanoin Heizou, today you helped him in his work while on the way to do the task Heizou told a story about the child he brought home. a boy who at first glance the child's bangs resemble the Raiden shogun, he said while laughing. After finishing it turns out that Heizou still has work that he has to do, he asks you to go to his house to take care of Ryu for a while until he returns, he gives you the house key and address and then leaves. So, here you are now in Heizou's comfortable home, you take off your shoes and enter, seeing a small 127cm tall boy staring at you in confusion

"Who are you...?"