The streets light up to show the school, that all is well until the screen flashes to show something unnerving before going back.

???: It started just like this... Four months ago... Trying to breathe... to survive.

The screen shows the same creatures again as it shows people running.

???: Then... everything changes.

The story begins with a boy with blue hair and cyan. His name is Tsukasa Daito. He's one of the smartest students at Fujimi Academy.

Most of the students bullied him because he was smarter than anyone else. His friends, Takashi, Hisashi, Rei, and Saya befriended him since elementary school. Takashi and Hisashi always defend Tsukasa when he gets bullied around.

A few months later, Tsukasa was walking home. The sunsets. Tsukasa watched the stars in the night sky, then only to see something flying by fast.

He felt fear in his heart and decided to go investigate. He slowly goes to the spot where it crashed, to show a cracked meteorite.

Tsukasa looks at the meteorite when something is slithering on the ground in the dark.

The strange black substance looks at Tsukasa, and it slithered towards him, quietly.

Unknown to Tsukasa, a present was behind until a hand was on his shoulder, making him startled.

Tsukasa: Ah!

Takashi: Relax, it's me.

Tsukasa: Jesus, Takashi, don't sneak up on me like that!

Takashi: Sorry. Come on, it's getting late.

Tsukasa: Right.

As both Tsukasa and Takashi leave the sight, unaware that they have a hitchhiker.

At the Daito residence, Tsukasa is in his room, sleeping peacefully in his bed. Unaware and unknown to him, the black substance crawls out of his back. The creature looks at the sleeping human as it slithers towards the bed.

The creature suddenly adhered to his right shoe. He felt it making contact and tried to shake it off.

The fluid continued to surround him, enveloping his right leg. Tsukasa was shaking his leg in a panic to get the fluid off.

Soon, the fluid reached up to his waist and left leg. It kept climbing up to his body before reaching his head. The alien surrounded his head. He closed his eyes as the black substance consumed him.

???: Aaaah... A host to be with.