This letter started in England, circled the globe, and found its way to you.

Now, it's your turn.

Chain Letter is a hybrid indie game that weaves rhythm-based action, grid-based defense, and emotional narrative into one unique experience.
You play as Mongsil, a girl trapped in a repeating day at Lilico Academy, in the small eastern nation of Corenia.
You must deliver a mysterious “chain letter” to your classmates, persuading them to join you and facing down hellish foes as you confront the truth behind the so-called “Miracle of Lilico.”

The game begins as Mongsil receives a letter and follows a strange bat-cat into a surreal underworld.

Key Features

• Rhythm-based battles combined with tactical grid-based defense

• Recruit up to 31 classmates through puzzles and choices

• Narrative-driven progression and emotional friend stories

• Customizable skill combos using friend abilities

• Gradually uncover the truth behind the letter and the ‘Miracle of Lilico’

• Roguelike structure with growth through replay

_If you choose to ignore this letter, _

_misfortune may follow. _

Where It Begins

This is the story of Mo Mongsil, a girl from **Corenia**,
who once experienced a mysterious incident at Lilico Academy.
A momentary sequence of events later came to be known as
The Miracle of Lilico.

And now, in Mongsil's room,
that morning is starting again.

Epilogue

This game began with a phrase from an old internet chain letter.
But what if delivering a letter wasn’t a curse —
but a symbol of someone trying to connect?

Here, skills are not just attacks — they are the strength of friendship.
Chain Letter is more than a rhythm game.
It is your journey to persuade, connect, and fight side by side.
a small letter that arrived in your inbox on a lonely day.
Perhaps it was sent by a mischievous devil,
just for you.