Riding his bike to school, Koichi accidentally runs over a bag that was in the road that had a cat inside. Koichi is instantly overwhelmed by what happend. Then suddenly, a man named Tamami Kobayashi appears. Despite it being an accident, he demands money from Koichi, saying that he'll use it to bury the cat. Koichi can't process what's going on, but Tamami keeps pushing that he can't just leave after what happened. Koichi is filled with guilt, and then suddenly, a giant lock pops out of his chest...
If anyone who's got my lock on them 
tries to damage me in any way,
إن حاولَ أي شخص قد حَظيَ بقِفلي
أن يلحقَ ضرراً بي بأي وسيلة
Falls mir jemand mit meinem Schloss
Schaden zufügen will,
Si intentas hacerme daño
cuando cargas uno de mis candados,
Si intentas hacerme daño
cuando llevas uno de mis candados,
Si quelqu’un avec un cadenas
m’inflige des coups,
Qualsiasi cosa mi farai
mentre hai il lucchetto attaccato...
Se alguém "encadeado" me causar
algum tipo de dano,