the past

Four years ago, Shuuki’s world was turned upside-down when his twin sister, Fuyuka, died in an accident at just 12 years of age. His parents blamed her death on the negligence of their eldest son, Natsume. The Amamiya family was never the same.

the present

One fateful morning, Shuuki stumbles across the gruesome sight of his brother Masaharu’s corpse. When all hope is lost and Shuuki must come to terms with the fact that his brother has been murdered, the mysterious Kyousuke appears before him with a proposition.

"Do you want to bring your brother back?

To fix your family’s broken relationship? You can…if you learn to travel through time."

The future

Before he knows it, Shuuki is caught in a plot far more sinister than he could have ever imagined. He learns that the key to traveling through time and stopping innocents from being killed lies in mementos: items that are a link between the past, future, and present.

Main Characters

shuuki amamiya

Our protagonist. He is bright and quick-witted, but has a sharp tongue and won’t apply himself to anything he considers boring. Many of his peers find him hard to deal with and there’s a lot of nasty rumors floating around about him. Most of them are true. Though he loves his brothers, Shuuki often goes out of his way to try to annoy them.

natsume amamiya

Shuuki’s eldest brother is asleep more often than not. While harsh and cold towards people he doesn’t know, Natsume is ridiculously affectionate towards his two younger brothers and Chiaki. He loves to cook, doodle pictures of giraffes, and read modernist Japanese literature. Incidentally, literature is the only class he isn’t failing.

masaharu amamiya

Growing up, Masaharu always felt too normal compared to his brothers and developed a need to set himself apart from them. As a result, his personality is rather dry and he’s quick to anger. Masa is the captain of the basketball team even though that position is normally reserved for seniors; it’s a testament to his ability.

chiaki sorata

Natsume’s childhood friend turned caretaker. Chiaki is somewhat short-tempered (especially if you mention his height) and a hard worker, so it's a wonder how he and Natsume even get along, but they manage. He has a shaky relationship with his own family and doesn’t like to open up much about himself.

yukinari hosokawa

The outsider in this group, Masaharu’s dreaming, scheming classmate Yukinari grew up in a strict, old-fashioned family that maintains influence and power in national business and government. There's a certain amount of privilege coming from that background, but mostly Yukinari feels a burden of restrictions and keeping up appearances.


Click any image to enlarge.


Break Chance Memento (BCM) is a Cyanide Tea visual novel with additional gameplay related to the time travel aspect of the story. BCM is primarily a story about family bonds across time and involves time travel, tracking down a serial killer, and potential gay romance. It is plot-heavy rather than romance-heavy and can be classified as slice of life, boys' love, and science fiction. We give the game a 15+ rating due to violent/horrific imagery and writing.

Trigger & Content Warnings: verbal and physical abuse, implied sex, slurs related to gender/sexual identity, blood/gore, murder, violence, student/teacher romantic relationship, glitch imagery, some flashing lights/white screens, and suicidal speech/actions.

All writing and programming was done by Lore, though the main characters were originally conceived by:

All art and UI was done by Auro-Cyanide. This includes sprites, CGs, BGs, UI, and the logo design, among other things. Our original UI was designed by Lazcht of Stellar-Ø, with the map lineart done by Dito Satrio. Auro later completely revamped and redesigned the UI while reusing some of the core themes. Shadow was our trusty editor.

Beta testers: Amy Blackley, Chad Park, Danielle Dee, JaelDeHeist, Kristi, Mary Borsellino, Nekochan, NooseyGoosey, Reveris, Samantha P., SheerGlade, and Teuthowenia.

Other credits:

BCM uses the Ren'Py visual novel engine.

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Points of interest