Koishimaru Tensan

Koishimaru Tensan
Japanese:
Information
Gender:	Male
Medarots:	Omeda Nekuu Dechotom Adolphin Hardness Ten
Family:	Mother Father
Nationality:	Japanese
Game appearances
Medarot 5, Medarot G , Medarot DUAL, Medarot S
Other appearances
Manga: Medarot 5, Medarot G

Koishimaru Tensan is the main protagonist of Medarot 5 and ultimately Medarot G. He is an energetic an spirited boy who is easy to get along with, despite others thinking he is weird or strange.

In the games

In Medarot 5

Koishimaru and his family had just moved to Susutake village,and Koishimaru is enrolled in the school there. Having just gotten a new Medarotch, he hopes to join the Medarot club at his new school. At the bus stop he meets Yamato Shijimi, and is shown around the village while waiting for the bus. However disaster strikes, and the duo are pushed into cow manure by two bullies, breaking Koisimaru's Medarotch. After getting a shower, he realizes that he's going to be late for school and rushes to the bus stop... only to come too late. He either waits for a taxi, or runs after the bus. He ends up meeting Michiru the taxi driver either way. Michiru tells him about some Ghosts who are appear to be causing trouble when they appear.

When Koishimaru arrives at school, he is scolded by Prof. Usumon, and meets Prof. Akane. After school, noticing Yamato wasn't there, he goes to the Shijimi residence. En route he hears Beni Shijimi, Yamato's younger sister crying. Koishimaru finds out that Beni's balloon floated up in to a giant tree. In the tree he find abandonded Parts for Chrotojil/Shinzan , a Kabuto/Kuwagata Medal and a new Medarotch. Attempting to give them back, Koishimaru meets Hiko Tamayasu and Shinzan/Chrotojil. Hiko's Medarot assumes Koishimaru is a thief, but Koishimaru defuses the situation by saying exactly what he was trying to do, and Hiko realizing that Koishimaru is new to Robottles offers him advice and as Hiko is about to test Koishimaru in a robottle, the Ghosts attack.