Sometime later, Kasumi was approached by Masahiro Nabeshima, who told her to direct Ryuga to Takumi Katsuragi, promising to help Ryuga make a comeback in return. Kasumi agreed, and brought up Katsuragi on her next date with Ryuga. However, when Katsuragi was found dead, Ryuga was framed for the murder and sentenced to ten years in prison. One year later, soon after Ryuga's escape from prison, Kasumi was kidnapped by Faust. Kasumi received a call from Ryuga seconds before forcibly undergoing a transformation into the Burn Smash. Her consciousness suppressed, the Burn Smash attacked Ryuga when he came to find Kasumi. Sento soon arrived, but was interrupted by Night Rogue, who easily overwhelmed him as Build.
Publication Information
- Build : Kasumi Ogura
- Japanese : 小倉香澄
- Version : Kamen Rider Build Series
- Type : Ryuga Banjo's late-fiancé
- Known as : Burn Smash
- Affiliation : Smash
- Gender : Female
- Origin : Earth (World of Build)
- Season : Kamen Rider Build
- First Appeareance : Kamen Rider Build Episode 2 : The Innocent Runaway
- Last Appeareance : Kamen Rider Build Episode 2 : The Innocent Runaway
- Number of Appeareance : 1 (Build)
- Potrayer : Risako Itō
- Main View : Full Episod
Night Rogue gave Ryuga and Build a grim warning: due to her frail body, Kasumi was deemed a "Hazard Level 1", meaning that it would be impossible to return her to her human form without killing her in the process. While Ryuga tried to stop Build from finishing the Smash, Kasumi's consciousness began to fight off the Smash persona, causing it to misfire when it tried to attack Ryuga. Realizing that it was too late to save her, Ryuga begged Build to end Kasumi's suffering.
Using the GorillaMond form, Build was able to temporarily separate Kasumi from the Burn Smash, allowing her and Ryuga to say their goodbyes. Soon, Kasumi's consciousness faded, and Build extracted the Burn Smash's essence. The harvested essence was purified into the Dragon Full Bottle, which Sento gave to Ryuga as a memento of his beloved.
Form
Burn Smash
- Burn Smash
- Origin : Earth (World of Build)
- Version : Kamen Rider Build Series
- Type : Smash
- Height : 207.0 cm
- Weight : 121.0 kg
- Appeareance : Build Episode 2
- Hazard Level 1 : Unlike other Faust victims, Kasumi's body is too weak to survive the Smash transformation. As a result, extracting her Smash essence cost Kasumi her life.
- Pyrokinesis : As its name said, it has the powers to freely generate fire.
- Fire Ball Projection : It can release fire balls from its cannons to attack its enemies.
- Flamethrower : It can release a fire wave from its cannons to attack its enemies.
- Retained Consciousness : Unlike other Smash, Kasumi managed to retain some of her consciousness while in her Smash form: she misfired when attempting to shoot Ryuga.
