It was a wonderful day in the mushroom kingdom, except for two of the guys in the kingdom.
Luigi had woke up very sick that morning and mario decided to go inside luigi to find out what was going on. So mario went and built a machine to help him go inside luigi's body.
Mario first went into luigi's head. Hmmm, mario says, ok that must be some buildup there, he was not as concerned about the buildup in his head as he thought it was only part of the problem, so mario went in further in luigis body to find out.
Next area was luigi's nose, he saw there was more concern there. When he was leaving the nose, he was caught off track by something in the nose. Luckily the machine came with an automatic germ killing device so mario was safe from the gunk in luigi's nose.
Next area was luigi's throat. Mario noticed something peculiar. Whatever was bothering luigi must have surrounded there. Before mario could get far in lugi's throat, he heard a loud sneeze coming and it made something get stuck in luigi's throat, so mario decided to go in further.
After about a few hours of searching, Mario went back outside Luigi's body. Just as he was cleaning up the mess, Luigi woke up and was wondering what the noise was. Mario said to Luigi, go back to sleep, i'll get to the store and get you some medicine. Luigi quickly went back to sleep.