Mephisto X Amaimon ~Notice Me Aniki~

Amaimon starts acting strange, hanging out with "B.B", Mephisto starts to notice and gets annoyed by this. Finding out what is wrong with Amaimon, we will only know how this will end. Will love blossom into Heaven, or plum it into the abyss of Hell's flames?

Aniki = Big Brother
Omouto = Little Brother