Five experimental animals that looked like humans were collected in a room of an inorganic laboratory . They are mice , although they are human in appearance , and they claim to be human. The last experiment was euthanasia . This story is a record of a ruthless experiment conducted on them.

Merciless Light

A female university student works as a tutor. She has a student who wants to become a doctor. This student has an older sister whom he lives with. The student is horny for his slim tutor. The tutor visits the student's home for the lessons. The student drugs his tutor with a home-made concoction that puts the woman to sleep. His plan for sex is interrupted when his older sister comes home. Then things become explicit.