Uke went to a village to start afresh with his work because in the past his friend committed suicide. He thinks that it was his fault.
Seme lives in a huge house in this village. Because of an incident in which his parents died and he as the only survivor got trapped in the car with his dead parents, he got claustrophobia. He can't trust anyone because his aunt and uncle betrayed and left him after the incident and they also are the cause of his parents' death.
Now the uke has to live in the seme's house.
Uke (probably; it isn't clear who is seme or uke) is afraid of the dark and can't sleep alone (he's even scared to wash his hair alone), so he asks his subordinate (probably seme) to sleep with him. Uke has a brother who is overprotective.
Kiraboshi Dial