Roaches

Hot blooded woman who can lose temper so easily. She can be rude sometimes(shouting,speak foul words), especially towards people who had different thoughts than hers. Although Yumi seems to develop many bad attitudes,(Please ask Rust Robot for more information.)she actually a caring person & loves to help others who in trouble.
Yumi had killed roaches since she was a 5 years old, being thought by her own grandma who also her 'teacher'. Being a roach killer requires good speed, strength & sharp eyesight.

Appear to be a close friend of Yumi.Takuma possesses a great ability in potion making & created a formula of magnify potion. He is a calm person & show his concern toward Yumi's well being. he also the one who had thought about their escaping plan.
Takuma get hit by the unknown figure (suspect who stole his formula) when he step his foots into the Slump area. After waking up, he found himself trapped in the ''pit of hell'' & get chased by the mutant roaches endlessly. Takuma got attacked & his left foot injured badly when he saved Sherra from being attacked by the Roach Queen monster.

The rumor about the giant @ mutant roaches in Fallen Leaves Town had attracted Adam's attention & thus, he went to the said town to capture the creature for his study. He appears to show different thoughts than Yumi and as the result, they always get into a fight. His cold attitude and lack of manner (inconsiderate about others feelings) also another reason for Yumi to dislike him.
Adam also get attacked by the Roach Queen at the time when he tried to walk away from the dumpster at the Slump residential. His right arm get injured but it didn't break his spirit to capture the monster.

It supposed to be a normal yet a happy day for young lover like Mark but yet, things doesn't turned out like he wanted. Suffers from Katsaridaphobia (fear of the cockroach), Mark unable to join Yumi on her quest. However, Mark stays in charge of taking care of others safety as requested by Yumi when she went on her mission and tries to calm Sherra down when she cries. When facing a fear situation, Mark will scream like a girl & start to lose his sense.

Mark was about to finish his part time job(sending the final letter to Mada's house) & have a date with her girlfriend Maria but the Roach Queen suddenly pop up & scares him away.

When almost no more roaches can be found in the Fallen Leaves Town (except the Slump area), new & young generation like Sherra can't tell a difference between a roach and butterfly, all thanks to Yumi's job of exterminating the insects. Just like other 5 years old girl, Sherra is friendly, playful and tend to believe everything which is spoken to her.
Sherra was playing at the park, all by herself with her panda doll. She is chasing the butterflies.Suddenly, she spotted a small roach which she called as ''brown butterfly'' & started to chase the ''brown butterfly''. She didn't realized she had walked far into the Slump area and get chased by the Roach Queen.

A greedy and stingy Mr. Jenkin is on his way to the slump. He wished to demolish the old building in that place but since Mada still lived there, he had no choice but to ask him to leave the place but before he could meet Mada, the Roach Queen greet him and scared him off. Before, Mrs. Puff, the former tenant of the Slump Residential warned him not to continue his plan since she knew Mada will never surrender his home to anyone.
Nothing much can be known about Jenkin except Yumi found out he is sleeping with his eyes opened which turned out to be the most creepiest thing she ever saw in her life.

It appears not a single soul in the town know about Mada, except Mrs. Puff who used to be his next door neighbor while she lived at the Slump 16 years ago. An old police report revealed a terrible experience of young Ai Mada who nearly got killed by his own father but he had been saved by Mrs. Puff who witnessed the act. A series of child drawings in his house revealed a sad life of Mada who doesn't have any friends except the roaches, & his mother & father always fighting which ended up by his mother left him behind.
From Mada's reports, it seems Mada had run some illegal experiment on cockroaches and stole Takuma's formula to complete his experiment. His work was a success but not long after that, he found out that the mutant roaches started to become vicious and aggressive which forced him to find a solution to destroy his own creations. He sent a request letter to Yumi (without telling her the truth @ details), hoping she will destroy the roaches but eventually, Yumi was on her vacation at that time. Mada tried to confine the monsters in his house but got killed brutally by his own mutant roaches. Mada appears in black/grey figure form throughout the story.