Foresight

Foresight (予知) is a Quirk used by Sir Nighteye.

Description
Foresight grants Sir Nighteye the ability accurately predict all of the target's future moves and actions for an entire hour.

This Quirk activates by first touching a target and then making eye contact with them. Once these conditions have been met, Nighteye is capable of watching the target's future lifetime from a third-person perspective that showcases the target themself and their immediate surroundings, in a manner similar to a flashback Nighteye does not appear to have a limit to how much he is able to see into the future, being able to foresee events that are years beyond present time.

The drawback to this ability is that Nighteye is incapable of giving a precise date to when said events will happen, thus having to rely on rough estimates; the events themselves still end up happening sooner or later due to the outcome shown in Nighteye's vision being apparently impossible to change, although this was proved to be false when Izuku Midoriya completely defied the vision seen during his fight against Kai Chisaki.

Once Foresight is activated, Nighteye requires a 24-hour interval before he is able to activate it again. The conditions to activate this Quirk are considered a company secret, presumably to keep potential opponents in the dark about his abilities.

Usage
Sir Nighteye was extremely careful and reluctant about using his Quirk, as he seemingly believed that any outcome he were to visualize, including negative ones, would be impossible to change. As such, he refused to employ Foresight for situations he couldn't foresee through normal means, using it solely as a way to ensure results that were already under his control and likely to happen to begin with.

The people Sir Nighteye was confirmed to have foreseen (as well as their respective fates, confirmed or not) include:


 * Toshinori Yagi: Without Toshinori's consent, Sir Nighteye was able to envision him meeting a "horrifying demise" against an unspecified villain. Toshinori believes this prediction is still up and might happen in the following one or two years.
 * Izuku Midoriya: As part of Izuku's test to be accepted into his office, Sir Nighteye challenged the student to take a stamp from his hands, with Izuku being unaware of Foresight's activating conditions. Sir Nighteye was able to foresee all of Izuku's moves, which resulted in the latter failing his test, although Izuku would get accepted anyway (due to that being part of Sir's vision as well).
 * An unnamed Shie Hassaikai member: During a shopping trip, Sir would stumble into a shady figure buying toys. Thinking of his behavior as suspicious, Sir approached the stranger and secretly used his Quirk on him, revealing the location Eri was being held.
 * Kai Chisaki: While fighting the leader of the Shie Hassaikai, Sir briefly used his Quirk on him and came across a future where both Izuku Midoriya and Eri would get slaughtered by Kai. This future didn't come to pass, however, changing Sir's perspective about Foresight.
 * Mirio Togata: On his death bed, Sir Nighteye used Foresight one last time on Mirio. While he didn't give off any specific details, he was glad to know that his pupil would become an "outstanding hero".