

Holy Valkyrie ExS-TIA F
Lusterise · 2026 · Casual, Visual Novel, Anime, 2D Platformer
PC
6 user reviews67% · 6
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About Holy Valkyrie ExS-TIA F
GAMEPLAY & FEATURES
- Single-ending visual novel with 20 minutes till credits
STORY
Strange news reaches the ears of Yuri Amakubo, the scientist behind the ExS-TIA system.
On a remote island in the middle of nowhere was a woman who was the spitting image of her older sister Kaede. To uncover the truth, Yuri immediately heads to the island with Souma.
There, they find Kaede—who remembers her name, but has lost all other memories. Surprisingly, she and Yuri possess identical pendants...
Could this be the key to unlocking her past?CHARACTER
Yuri Amakubo
The female scientist behind the ExS-TIA system. Possesses a keen instinct.
Kaede Amakubo
Yuri’s older sister. A sophisticated woman in contrast to Yuri. Her whereabouts have long been a mystery.
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
[後半に日本語レビューあり] [h1]An Amnesiac Sister and the Corruption of a Remote Isle: Transformation Heroine H-VN[/h1] The second of three parallel-episode spin-offs within the ExS-TIA series. This transformation heroine corruption H-VN opens on a tantalizing mystery: scientist Yuri, hunting the truth behind her missing sister, encounters on a remote island a woman who is the spitting image of her sibling—yet carries no memories whatsoever. At the heart of this work lies a story of sisterly bonds and lost memories. Why did Kaede lose her past? What do the identical pendants they both wear signify? Carrying these questions, Yuri and her partner Souma step onto the island—and from that moment, a quiet but unmistakable tension begins to build. In visual novel format, credits are reachable in a short sitting, but chasing the H-scenes and additional routes adds meaningful volume to the overall experience. Many note improved storytelling compared to the previous series entry; it enriches the shared world while keeping the balance between mystery and corruption scenes sharp. The island's closed geography effectively corners the heroines, and the transformation heroine premise meshes naturally with …15 found this helpful
This episode follows Exstia series established in a parallel world so it's highly recommended for fans who have played previous game. Since this title focuses entirely on Yuri-chan, I was looking forward to seeing what kind of monsters she would be attacked by and what kind of monster transformation she would undergo. There are technically two patterns for the monster transformation. One where the heroine become a breeding ground after assimilating with another monster and another one she become a slutty little girl. Which I personally found very disappointing. In terms of content both Amakubo sisters get roughly the same number of H-scenes. There is also a fair amount of futanari and yuri elements so players who enjoy those specific themes will be very pleased!6 found this helpful
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