Twins - Master and Slave Play - Top and Bottom - Track 1 "Master and Slave Play"

A situation involving a pair of twins consisting of a mean-natured top and an introverted bottom with strong masochistic tendencies.

Characters:

Hikaru Kōsaka: Older brother.
1st person pronoun: ore
27 years old.
Typical eldest-son temperament.
Tends to purposefully use careless words to test one's feelings of love.

Rei Kōsaka: Younger brother.
1st person pronoun: boku
27 years old.
Slave temperament.
Has a tendency to depend on his older brother and nobody else.
Shy.
The type to lose his mind out of sheer pleasure when he switches gears.