Hagi (ハジ Haji) is the love interest of Saya Otonashi and also her first chevalier. Although Hagi is over 140 years old, he maintains the look of a handsome 25 year old man because that is the age at which he became a chevalier.

Hagi is the deuteragonist and male lead of the anime and manga series Blood+. He is Saya Otonashi 's first chevalier and also her lover. He is voiced by Katsuyuki Konishi in the Japanese version of the anime, and by Crispin Freeman in the English version of the anime.

Haji is Saya's first, and only living, chevalier. In 1870, the twelve year old boy is purchased by Joel and Amshel from his parents for a loaf of bread to be a companion for Saya, with hopes that they might mate and create more specimens for future experimentation.

I LOVE Hagi and Blood+!!!

Hagi [haji in the english dub] is the first chavalier and the lover of saya and the chavalier brother of riku. Haji possess a very calm and solitary personality throughout the series rarely talking he is shown to care very much for saya deepy. protecting her at any cost however he apears to have...

Saya, forced to return to her former life, is reunited with Hagi, her chevalier—a special form of chiropteran created by feeding a human the blood of a queen, which causes a powerful bond to form and compels the chevalier to serve and protect his queen at all costs.

Saya Otonashi (音無 小夜, Otonashi Saya) is the main protagonist of the anime and manga series Blood+. She is the first-born daughter of the Chiropteran Mummy, a pure blooded Chiropteran queen, the older twin sister of Diva, aunt of Kanade and …

Hagi kisses Saya, forces her to drink his blood, then gives Saya a sword coated with her own blood. This event causes a strange transformation in Saya; her eyes glow red and she becomes a fighting machine, quickly killing the Chiropteran.

Blood+ (stylized as BLOOD+ and pronounced "Blood Plus") is a Japanese anime television series produced by Production I.G and Aniplex and directed and written by Junichi Fujisaku. The series was broadcast on MBS and TBS from October 2005 to September 2006.

Hagi falls off a cliff and Saya turns him into a Chevalier with a blood transfusion. Diva turns the party into a massacre, killing Joel and the other humans, save for Amshel.