Honkai: Star Rail | Version 4.3 launches June 1
Honkai: Star Rail Version 4.3, titled “The Lethe Below the Living,” launches on June 1. The update continues the Planarcadia storyline, introduces Mortenax Blade as a new 5-star character, adds Starward Mode to challenge content, and previews the return of the Fate/stay night [Unlimited Blade Works] collaboration this summer.
Honkai: Star Rail Version 4.3 launches June 1 with Mortenax Blade
Version 4.3 continues the Planarcadia arc as the Trailblazer and Mortenax Blade separately enter the World in Canvas. The update focuses on the secret sealed deep within Planarcadia and the divine husk of the Aeon Voracity, tying the story directly to Blade’s long-running curse and fate.
The main value of this update is the continuation of the version storyline and the debut of Mortenax Blade. Additional content includes the “Wispae Amusement Park” event, Starward Mode for endgame challenges, rerun banners, and early information about the upcoming Fate/stay night [Unlimited Blade Works] collaboration.
Watch the Official Trailer
The official trailer introduces the tone of Version 4.3 and highlights the journey toward the end of the painting where the ancient Lethe flows.
The trailer supports the update’s central theme: memory, fate, and the final stage of Blade’s story within Planarcadia.
What’s New in Honkai: Star Rail
Mortenax Blade debuts as a 5-star Fire-Type character following the Path of Nihility. His combat style uses a Bounded Field, enhanced state, debuff interaction, Charge accumulation, and a stronger Ultimate after entering his powered form.
The update also adds the “Gift of Tempered Blade” event, where players who obtain Mortenax Blade from Warping can claim the new Trailblaze Outfit piece “Karmic Fire of the Distant Shore” for free. Yao Guang returns in the first half of the version, while Cyrene and Phainon return in the second half.
For gameplay, Starward Mode will be added to Memory of Chaos, Pure Fiction, and Apocalyptic Shadow. This mode asks players to prepare three teams for three different stages, with extra Stellar Jade rewards available for full-star clears.
HoYoverse also confirmed that the Fate/stay night [Unlimited Blade Works] collaboration will receive a new content update on July 24, with Gilgamesh and Rin Tohsaka revealed as collaboration characters.
Sources and Recommended Links
- Version 4.3 Trailer: “The Lethe Below the Living” | HoYoverse Official Site
- Version 4.3 “The Lethe Below the Living” Highlights Page | HoYoverse Official Site