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Kaiju Princess Secret Pulse

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 Kaiju Princess Secret Pulse-Action Interactive Movie - Debut Trailer trailerWatch trailer on Steam ↗

Kaiju Princess Secret Pulse

第四の壁 · Published by 第四の壁 · Official site ↗

Last updated 28 Sept 2026

After the monster disaster, Mika remains missing. Team up with the mysterious monster princess Xao and awaken alien crystal powers through “Love Resonance”! Build relationships with five girls, uncover the truth behind the monsters, and face a new awakening threat!

Free to PlayComing SoonDJCTQ 10

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

RPG, Casual · More free games

Explore the mysteries of Mika's disappearance by forming bonds with five girls in this RPG that blends casual play with deep storytelling. Unlock powerful abilities through "Love Resonance" as you uncover the truth behind the monsters.

About this game

About This Game

Six months ago, a sudden monster disaster devastated the city.

After the catastrophe, the monsters fell completely silent—and Mika, the girl you had been searching for, vanished without a trace.

Just when your investigation reaches a dead end, a mysterious woman named Xao suddenly appears before you.

She reveals that the monsters are connected to mysterious “Crystals” originating from an extraterrestrial civilization.

But there’s one unexpected catch:

To awaken the Crystals’ true power, you must create a romantic resonance with girls?!

To find Mika and stop the monsters from awakening once again, you have no choice but to dive headfirst into an adventure where romance and battle collide!

💟 Gameplay 💟

Experience a live-action interactive story from a first-person perspective, where you will meet five different girls and build relationships with them.

Every conversation and decision you make will influence how they feel about you—and determine how the story unfolds.

But romance isn’t your only challenge.

You must also harness the power of the mysterious Crystals to fight, defeat enemies, and gradually uncover the truth behind Mika’s disappearance and the monster disaster.

Fall in love. Build your resonance. Gain new powers. Save the world!

💟 Features 💟

  • First-person live-action interactive romance experience

  • Multiple heroines with unique routes and endings

  • Meaningful choices that shape the story

  • Romantic Resonance × Alien Crystal Powers

  • Monsters × Romance × Sci-Fi

  • Live-action tokusatsu-style battle sequences

  • The latest live-action interactive title in the Monster Princess series

💟 Characters 💟

Xao

Starring Kana Momonogi

Mika

Starring UNPAI

Nanami

Starring Rena Momozono

Saki

Starring Hinori Uragami

Amane

Starring Rio Kuriyama

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 11 64-bit
  • Processor: Intel Core i3 / AMD Ryzen 3
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GeForce GTX 1060 6GB / AMD Radeon RX 580 8GB
  • DirectX: Version 12
  • Storage: 30 GB available space
  • Sound Card:

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 11 64-bit
  • Processor: Intel Core i5 / AMD Ryzen 5
  • Memory: 16 GB RAM
  • Graphics: NVIDIA GeForce RTX 2060 / AMD Radeon RX 5700
  • DirectX: Version 12
  • Storage: 30 GB available space
  • Sound Card:

Supported Languages

Traditional Chinese, English, Japanese*, Simplified Chinese
*languages with full audio support

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