From Wikimon

Biographical Information

Name	Daimon Suguru
	Spencer Damon
Full Title	Professor Suguru Daimon
Kanji/Kana	大門 英 (大門英 教授 Daimon Suguru-Hakase)
Age	?
Organization	Digital World Exploration Party
Partner Digimon	Bantyo Liomon
Digivice Color	Yellow-orange and Black
Voice Actor	Gouda Hozumi (郷田 ほづみ)
	Jeff Nimoy

Profile

Daimon Suguru is the father of Masaru and Chika. Ten years ago, he was Earth's lead researcher of the Digital World, and was part of the Digital World Exploration Party in search for the missing Noguchi Ikuto. He sought peace between Digimon and humans, and Mercurymon was the one to suggest that he should go to search for Yggdrasil, the omnipresent God of the Digital World. Before his quest in search for Yggdrasil, he gave Mercurymon a Digivice iC (which in the future came to be owned by Noguchi Ikuto) and sent Kamemon and Kudamon as emissaries to the Real World, who became Yushima Hiroshi and Satsuma Rentarou's partner Digimon, along with the blueprints for the Digivice iC and plans to set up the Digital Accident Tactics Squad - DATS.

At one point during his travels in the Digital World, Suguru met El Doradimon, who was dehydrated. Suguru gathers Digisoul in his fist and punched the ground, creating a fissure that released water. From then on, Baromon and the other inhabitants of the Holy Capital have praised Suguru and referred to him as their Savior and Messiah.

After ten years searching for Yggdrasil, he encountered a Bantyo Liomon and eventually the two became close. Upon confrontation with the Royal Knight Craniummon, Suguru evolved Bantyo Liomon to his Burst Mode and disarmed Craniummon. Yggdrasil physically appeared, seeing at that Suguru would finally be able to make peace between Digimon and humans. However, when Kurata Akihiro attacked the Digital World the first time, Suguru was imprisoned by Yggdrasil. When Suguru bet his life that it wouldn't happen again, Bantyo Liomon stood up for him and Yggdrasil gave Suguru another chance.

When Suguru heard of the news regarding Mercurymon's deletion under Kurata's massacre scheme reaching Yggdrasil, he questioned how Satsuma and Yushima could have allowed such a thing to occur. He also heard of a rumor that his son was also in the Digital World fighting off Kurata. He desperately urged Yggdrasil to release him, but Bantyo Liomon said that he can't because he made a promise to Yggdrasil; he couldn't afford to break that promise.

When the other Royal Knights members surrounded Suguru to execute him, Bantyo Liomon intervened and punched Suguru himself. After asking for forgiveness, Bantyo Liomon asked that if they were to become one with each other so that he could at the same time watch over his son. Suguru's soul was transferred into Bantyo Liomon before Yggdrasil took his body as hostage, threatening to destroy the body if under such circumstances they were to get involved in battle or reveal their true identity to anyone.

Using Suguru's body, Yggdrasil ordered the destruction of the Real World in order to save the Digital World, sending his Royal Knights out across the globe to destroy it. Masaru resolved to discover the truth of what his father had become, and embarked on a quest to find Yggdrasil again. However, much to his shock, he found out that his "father" does not recall any memories or feeling towards him. When Masaru fought against his "father", Bantyo Liomon revealed that he is Suguru. After revealing the truth, he asked Masaru to destroy himself (in Bantyo Liomon, holding down Yggdrasil) and Yggdrasil. Shine Greymon then took out the possessed Suguru, destroying both Suguru's and Bantyo Liomon's bodies.

In the end, after Yggdrasil's defeat, Suguru's body was restored and he continued to live peacefully with his family.