Ichijōji Osamu

一乗寺 治

**Ichijōji Osamu** (一乗寺 治) is Ken's older brother.

## Appearance

Osamu had spiky dark hair and dark blue eyes. At the age of 7, he wore square glasses with a brown frame, an olive-green polo shirt, light-purple shorts, white socks, and green and gray shoes with white laces.

At the age of 11, he wore square yellow browline glasses, an olive-green short-sleeved hoodie over a long-sleeved blue shirt, long gray pants, and light-purple shoes with white laces and yellow soles.

## Personality

Osamu was very intelligent and considered a genius. His warm relationship with his younger brother became colder and distant due to his focus on his studies.

## History

Osamu was born three years before Ken. He was exceptionally intelligent and touted as a genius since he was young; his academic performance and good behavior were the subject of admiration and envy, which made his parents and brother very proud of him. As young children, Osamu and Ken got along quite well. The brothers had a habit of blowing bubbles from their balcony, with Osamu making the soap water and straw for his younger brother. He would also praise Ken's talent for making large soap bubbles, lamenting that he wasn't as gentle as his younger brother.

However, as the boys grew older, Ken felt that he was often overlooked and neglected by his parents completely in favor of Osamu, and he grew jealous and resentful of his older brother. Meanwhile, Osamu grew colder and more distant from Ken. Both Ken and his parents later reflected that Osamu was often in a bad mood, and suspected he may have not enjoyed studying as much as they thought and would have liked to enjoy his childhood more. In August 2000, while the brothers were sitting in their room, a Digivice which was meant for Ken came out of Osamu's computer. Osamu, thinking it was meant for him, put the Digivice in his desk drawer. While he was away from their room, Ken took the Digivice and was transported to the Digital World. When Osamu returned and found Ken holding the Digivice, he slapped the device out of his brother's hand and berated Ken for touching his property without permission, before ordering him to leave the room to allow him to focus on his studies.

Upset and envious of his brother having everything while he had nothing, Ken wanted nothing more than for Osamu to disappear. Tragically, not long after, Osamu ended up getting hit by a car and dying. Ken was full of sorrow, thinking his wishes were the reason Osamu died.

## Legacy

### Digimon Adventure 02

Believing Osamu's death was his fault, and under the influence of the Dark Seed, Ken dedicated himself to his studies, in an attempt to help his parents fill their void. Ken became bitter and cold, much like his brother, until he became the Digimon Kaizer. Ken's appearance as the Digimon Kaiser was subconsciously inspired by his older brother, with spiky light blue hair and sunglasses resembling Osamu's glasses. Eventually, the Digimon Kaizer was defeated by the Chosen Children, and Ken ceased trying to become like his brother. Later, when Belial Vamdemon used his Mind Illusion attack to trap the Chosen Children in their own dreams, Ken saw an illusory version of Osamu, who told him he had suffered enough and paid for his sins.

#### Digimon Adventure 02 Original Story: 2003 -Spring-

In the spring of 2003, Ken reminisced about his and Osamu's relationship, how the brothers were never allowed to play freely before, and how he has surpassed his brother in age, but could never surpass Osamu. He resolved to stop dwelling on the things he couldn't do and start working on things he can do in the future, and thanked Osamu.

## Gallery

* Appearance
* Guides
* Setting Material

Osamu, age 7.Osamu, age 11.

Osamu in Ken's family profile in Digimon Adventure 02 Memorial Book.Osamu in Ken's family profile in Digimon Adventure Character Perfect File.Osamu's profile in the Digimon Animation Chronicle Digimon Series Memorial Book.

Osamu's character setting material.Osamu's character setting material.
## Trivia

* Ichijōji (一乗寺) is a Japanese family name that means "first temple". Osamu (治) is a Japanese male given name that means "govern" or “reign”.
* In the English version, his first name was changed to "Sam", derived from "Osamu".
* His Japanese voice actress, Romi Park, also voiced his younger brother.

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Digimon Adventure 02, episode 23
2. ↑ Digimon Adventure 02, episode 49