diff --git a/keyboards/lily58/lite_rev3/config.h b/keyboards/lily58/lite_rev3/config.h
new file mode 100644
index 0000000000..9d2d289f5b
--- /dev/null
+++ b/keyboards/lily58/lite_rev3/config.h
@@ -0,0 +1,14 @@
+// Copyright 2023 yuchi
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 500U
+
+#define SERIAL_USART_FULL_DUPLEX
+#define SERIAL_USART_TX_PIN GP0
+#define SERIAL_USART_RX_PIN GP1
+
+#define I2C_DRIVER I2CD1
+#define I2C1_SDA_PIN GP14
+#define I2C1_SCL_PIN GP15
diff --git a/keyboards/lily58/lite_rev3/halconf.h b/keyboards/lily58/lite_rev3/halconf.h
new file mode 100644
index 0000000000..4639740d44
--- /dev/null
+++ b/keyboards/lily58/lite_rev3/halconf.h
@@ -0,0 +1,7 @@
+// Copyright 2024 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#define HAL_USE_I2C TRUE
+
+#include_next <halconf.h>
\ No newline at end of file
diff --git a/keyboards/lily58/lite_rev3/keyboard.json b/keyboards/lily58/lite_rev3/keyboard.json
new file mode 100644
index 0000000000..2073c0661e
--- /dev/null
+++ b/keyboards/lily58/lite_rev3/keyboard.json
@@ -0,0 +1,104 @@
+{
+    "keyboard_name": "Lily58 Lite Rev3",
+    "manufacturer": "Liliums",
+    "maintainer": "yuchi",
+    "url": "",
+    "processor": "RP2040",
+    "bootloader": "rp2040",
+    "diode_direction": "COL2ROW",
+    "usb": {
+        "vid": "0x1209",
+        "pid": "0x5801",
+        "device_version": "1.0.0"
+    },
+    "split": {
+        "enabled": true,
+        "serial": {
+            "driver": "vendor"
+        } 
+    },
+    "matrix_pins": {
+        "cols": ["GP8", "GP7", "GP6", "GP5", "GP4", "GP3"],
+        "rows": ["GP13", "GP12", "GP11", "GP10", "GP9"]
+    },
+    "features": {
+        "oled": true,
+        "bootmagic": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true
+    },
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"matrix": [0, 0], "x": 0, "y": 0.5},
+                {"matrix": [0, 1], "x": 1, "y": 0.375},
+                {"matrix": [0, 2], "x": 2, "y": 0.125},
+                {"matrix": [0, 3], "x": 3, "y": 0},
+                {"matrix": [0, 4], "x": 4, "y": 0.125},
+                {"matrix": [0, 5], "x": 5, "y": 0.25},
+
+                {"matrix": [5, 5], "x": 10.5, "y": 0.25},
+                {"matrix": [5, 4], "x": 11.5, "y": 0.125},
+                {"matrix": [5, 3], "x": 12.5, "y": 0},
+                {"matrix": [5, 2], "x": 13.5, "y": 0.125},
+                {"matrix": [5, 1], "x": 14.5, "y": 0.375},
+                {"matrix": [5, 0], "x": 15.5, "y": 0.5},
+
+                {"matrix": [1, 0], "x": 0, "y": 1.5},
+                {"matrix": [1, 1], "x": 1, "y": 1.375},
+                {"matrix": [1, 2], "x": 2, "y": 1.125},
+                {"matrix": [1, 3], "x": 3, "y": 1},
+                {"matrix": [1, 4], "x": 4, "y": 1.125},
+                {"matrix": [1, 5], "x": 5, "y": 1.25},
+
+                {"matrix": [6, 5], "x": 10.5, "y": 1.25},
+                {"matrix": [6, 4], "x": 11.5, "y": 1.125},
+                {"matrix": [6, 3], "x": 12.5, "y": 1},
+                {"matrix": [6, 2], "x": 13.5, "y": 1.125},
+                {"matrix": [6, 1], "x": 14.5, "y": 1.375},
+                {"matrix": [6, 0], "x": 15.5, "y": 1.5},
+
+                {"matrix": [2, 0], "x": 0, "y": 2.5},
+                {"matrix": [2, 1], "x": 1, "y": 2.375},
+                {"matrix": [2, 2], "x": 2, "y": 2.125},
+                {"matrix": [2, 3], "x": 3, "y": 2},
+                {"matrix": [2, 4], "x": 4, "y": 2.125},
+                {"matrix": [2, 5], "x": 5, "y": 2.25},
+
+                {"matrix": [7, 5], "x": 10.5, "y": 2.25},
+                {"matrix": [7, 4], "x": 11.5, "y": 2.125},
+                {"matrix": [7, 3], "x": 12.5, "y": 2},
+                {"matrix": [7, 2], "x": 13.5, "y": 2.125},
+                {"matrix": [7, 1], "x": 14.5, "y": 2.375},
+                {"matrix": [7, 0], "x": 15.5, "y": 2.5},
+
+                {"matrix": [3, 0], "x": 0, "y": 3.5},
+                {"matrix": [3, 1], "x": 1, "y": 3.375},
+                {"matrix": [3, 2], "x": 2, "y": 3.125},
+                {"matrix": [3, 3], "x": 3, "y": 3},
+                {"matrix": [3, 4], "x": 4, "y": 3.125},
+                {"matrix": [3, 5], "x": 5, "y": 3.25},
+                {"matrix": [4, 5], "x": 6, "y": 2.75},
+
+                {"matrix": [9, 5], "x": 9.5, "y": 2.75},
+                {"matrix": [8, 5], "x": 10.5, "y": 3.25},
+                {"matrix": [8, 4], "x": 11.5, "y": 3.125},
+                {"matrix": [8, 3], "x": 12.5, "y": 3},
+                {"matrix": [8, 2], "x": 13.5, "y": 3.125},
+                {"matrix": [8, 1], "x": 14.5, "y": 3.375},
+                {"matrix": [8, 0], "x": 15.5, "y": 3.5},
+
+                {"matrix": [4, 1], "x": 2.5, "y": 4.125},
+                {"matrix": [4, 2], "x": 3.5, "y": 4.15},
+                {"matrix": [4, 3], "x": 4.5, "y": 4.25},
+                {"matrix": [4, 4], "x": 6, "y": 4.25, "h": 1.5},
+
+                {"matrix": [9, 4], "x": 9.5, "y": 4.25, "h": 1.5},
+                {"matrix": [9, 3], "x": 11, "y": 4.25},
+                {"matrix": [9, 2], "x": 12, "y": 4.15},
+                {"matrix": [9, 1], "x": 13, "y": 4.15}
+            ]
+        }
+    }
+}
diff --git a/keyboards/lily58/lite_rev3/mcuconf.h b/keyboards/lily58/lite_rev3/mcuconf.h
new file mode 100644
index 0000000000..432c72853a
--- /dev/null
+++ b/keyboards/lily58/lite_rev3/mcuconf.h
@@ -0,0 +1,11 @@
+// Copyright 2024 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef RP_I2C_USE_I2C0
+#define RP_I2C_USE_I2C0 FALSE
+
+#undef RP_I2C_USE_I2C1
+#define RP_I2C_USE_I2C1 TRUE
diff --git a/keyboards/lily58/lite_rev3/readme.md b/keyboards/lily58/lite_rev3/readme.md
new file mode 100644
index 0000000000..54ce6229d1
--- /dev/null
+++ b/keyboards/lily58/lite_rev3/readme.md
@@ -0,0 +1,28 @@
+# Lily58 Lite Rev3
+
+![lily58_lite](https://i.imgur.com/RCx5Xym.jpeg)
+![lily58_lite_rev3_pcb](https://i.imgur.com/rIjVjCE.png)
+
+
+* Keyboard Maintainer: [yuchi](https://github.com/kata0510)
+* Hardware Supported: RP2040-Zero
+* Hardware Availability: [PCB Link](https://github.com/kata0510/Lily58/tree/master/Lite_Rev3)
+* Other Information(ja) [Link](https://docs.liliums.net/lily58-lite-rev3/about/)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make lily58/lite_rev3:default
+
+Flashing example for this keyboard:
+
+    make lily58/lite_rev3:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available