Koga had always been using music as a cauldron of his own creativity. He uses strum of his guitar to convey his hidden feelings, and Adonis knows it too well.

During lunchtime, both Koga and Adonis are sitting next to each other, one earphone for Koga's right ear and Adonis' left ear. They are now listening to Koga's newest sample for UNDEAD's next comeback, and he asked Adonis for his opinion on it.

That is, until Koga passed out on Adonis' shoulder, forgetting that he pulled an all nighter to perfected the compositions and is now leaving his laptop to the technologically backward Adonis. Curious about Koga's laptop, Adonis accidentally opened a secret folder with a bunch of .mp3 files, one of it is named 'adonis otogari.mp3'.