Recently, the creators of Honkai Star Rail held a presentation for the 4.3 update, titled "In the Depths of the River of Oblivion." miHoYo (HoYoverse) then traditionally published a selection of content screenshots.
HSR 4.3 will add only one new hero – Blade Mortenax will appear in the game. The character will have five stars of rarity and will deal Fire-type damage in battle, his path is "Nihility":
The body is like a spring tree, the heart is like dead ashes, but sparks of mastery still smolder at the fingertips. The age-old enmity has reignited, and he has vowed to send himself along with the gods to another world... Torn flesh, tempered a thousand times in the blade.... What answer will be forged?
In addition, the creators of Honkai Star Rail included locations and other game characters in the selection of screenshots:
The release of Honkai Star Rail 4.3 update is expected on June 3, 2026.
miHoYo also revealed the lineup of 4.3 character banners — Yao Guang, Tingyun, Yuykun, and announced a new collaboration with the Fate/stay night [Unlimited Blade Works] franchise and showcased characters.