Kokoro

Originally sung by Kagamine Rin.The story of the song is very heart touching.

The song is about Suishone Nagisa is a robot that created by a smart and cool professor.He is Rubine Karma.The robot is done but there's one thing left,an electric heart that can make the robot has the same feeling like human but create an electric heart for the robot is hard,it needs a lot of time for making it.

The professor uses his all time to create this heart for the robot.

Days after days,the professor dies because of didn't rest and eat for many days.

It's just like a miracle,after the professor dead,the robot started open his eyes.He looks around and walk around,he found 2 hair bands and 1 hair clip,he thinks his hair is messy,he uses his hand to comb his hair(because there's no comb in the laboratory),then uses the hair bands to tie up his hair.He also use the hair clip bring up his hair.

He suddenly found the electric heart that his master haven't created it completely.He sits down and look at the blueprint then look at the professor.He don't know what to do.He suddenly know something that he can do.He brings the professor's dead body(to be descriptive) to the backyard,he dig a hole and place the dead body carefully.After that,he covers the hole with the soil that he just dig out.

He goes back to the lab and try to figure out the blueprint of the heart.He's doing this because he wants to complete the mission that his master haven't complete.

After he done it all,he looks at the plan.Then,he put it inside him...

(There's more in the story)