Hikage Shinomori

Hikage Shinomori was a former Pro Hero and the fourth user of the One For All Quirk.

Appearance
Hikage was a lean man with short white hair that parts away from the base of his forehead, and thin eyes that slant slightly downward. Due to his accelerated aging, he gained two scar-like cracks stretching from the left side of his forehead down to his chin.

Personality
Hikage is a valiant and noble hero who was determined to defeat All For One. However, he was well aware of his limits and understood he couldn't defeat All For One by himself, so he spent his life training himself and strengthening One For All to be passed onto the next user. Hikage was described by Banjo as a "weirdo" who preferred to spend his time in solitude.

History
At age 22, Hikage was entrusted One For All by the third user at some point in the past. However, understanding the wide gap in power between himself and All For One, he chose to spend his time on the run and training to strengthen One For All in order to be passed down to the next user. 18 years after having inherited One For All, however, his body started to break down, due to his body not being able to handle the stockpile of multiple Quirks. It was around this time that he passed One For All onto his successor, Daigoro Banjo, before dying of old age.

Paranormal Liberation War Arc
In the aftermath of the Paranormal Liberation War, when Izuku is rendered comatose, he speaks to all the vestiges within One For All. Among them, Hikage approaches Izuku and introduces himself and his quirk that Izuku happened to awaken during his battle. Daigoro explains that Hikage was a weirdo that shunned modern society to live the life of a hermit while playfully attempting to tag him with Blackwhip, but Hikage insists that he lived in a terrible era, and society had the weirdos. Hikage asks if Izuku knows how long he lived and when he died, and Izuku remembers that Hikage died at age 40, but the cause of death was scribbled out by All Might. Hikage reveals that he died of old age, shocking Izuku.

Hikage and Banjo had no idea what caused his death, and it was only after All Might did research did they come to the realization that One For All couldn't be wielded by an ordinary person. Hikage continues, stating that he possessed One For All the second longest after All Might, and for eighteen years, he spent his time on the run to train his quirk. However, during his final years, cracks appeared on his face, and his body began to break down. Hikage had initially assumed it was because of some unknown disease, but after All Might dug up his medical reports and autopsy, Hikage understood that his life force had been eaten away due to possessing multiple quirks. Hikage stands in silence as All For One's brother explains how All Might was able to live for so long and what made him special, which was being quirkless, allowing his body to withstand its power.

Abilities
Overall Abilities: While the full extent of his abilities are unknown, Hikage can be assumed to be quite strong, being a One For All vestige. However, he wasn't strong enough to take down All For One.

Trained Muscles: Due to One For All requiring a strong host to handle its recoil, Hikage has a well-built muscular frame. He often spent most of his time training in isolation in preparation for passing on One For All to the next vestige, as he was aware that he wasn't strong enough to defeat All For One. His strength allowed him to easily crack large boulders in half.

Quirks
Danger Sense: Hikage's Quirk allowed him to sense incoming threats in the surrounding area, giving him ample opportunity to react to them. According to Izuku Midoriya, once a threat is detected, a stabbing sensation is sent to the user's head.

One For All: Transferred to him by the third user, Hikage's second Quirk allowed him to stockpile an enormous amount of raw power, allowing him to significantly enhance all of his physical abilities to a superhuman level. This results in unbelievable levels of strength, speed, agility, and durability.

Trivia

 * Hikage's surname contains the kanji for "eight" (四ノ) and "forest" (森) while his name means "to evade" (避) and "shadow" (影).