Pururin

Pururin (a.k.a. Purin) is the main character of a fictitious anime in the world of Welcome to the N.H.K. She is a magical girl that can transform into objects such as pudding (fun fact: her nickname Purin means pudding in Japanese). Kaoru Yamazaki is deeply in love with this fictional character and litters his room with figurines and life-sized body pillows of her. He also frequently plays her theme song.

Pururin Lyrics
The song was made by Shinshido Rumi:

Purupurupururin Pururin

(プルプルプルリン　プルリン)

Purupurupururin purupururin

(プルプルプルリン　プルプルリン)

Purupurupururin purupururin

(プルプルプルリン　プルリン)

For some reason little girls

(女の子は　ふしぎなことに)

Aren't satisfied with just cell phones

(ケータイだけじゃ　生きてめけない)

I want to be in your arms: love and courage are important

(胸いっぱいの　愛と勇気が大切なのよ)

I'm pururin purupururin

(あたし　プルリン　プルプルリン)

Purupururin purupuru rin

(プルリン　プルプルリン)

Rinrin purupuru pururin pururu

(リンリン　プルプルプルリン　プルル)

Fluffy as a marshmellow

(マシュマロみたいに)

There are tears in my eyes

(んわかでうるうるしちゃう)

The dream and hope, dream and hope

(夢と希望の　夢と希望の)

Of the magical girl!

(まほう少女)

That is me!

(それが　あたしなのよ)

For some reason little girls

(女の子は　ふしぎなことに)

Aren't satisfied with just text messages

(メールだけじゃ　満足できない)

With the raspberry cordial voice of yours

(留守録いっぱい　あなたの声で)

I want to hear my heart throb

(ときめきが欲しいの)

My magical powers bring me pain

(まほうの力は ほらうれしくなっちゃう)

Turning dreams into hope, and hope into dreams

(夢は希望に　希望は夢に)

Of the magical girl

(まほう少女)

And perhaps you too

(それが　あたしなのよ)