diff --git a/src/cal/day05.rs b/src/cal/day05.rs
new file mode 100644
index 0000000..ffcc6d2
--- /dev/null
+++ b/src/cal/day05.rs
@@ -0,0 +1,33 @@
+use axum::{
+    extract::Query,
+    response::{IntoResponse, Response},
+    routing::post,
+    Json, Router,
+};
+
+pub(crate) fn router() -> Router {
+    Router::new().route("/5", post(five))
+}
+
+#[derive(serde::Deserialize)]
+struct Pagination {
+    offset: Option<usize>,
+    limit: Option<usize>,
+    split: Option<usize>,
+}
+
+async fn five(Query(pagination): Query<Pagination>, Json(names): Json<Vec<String>>) -> Response {
+    let offset = pagination.offset.unwrap_or(0);
+    let limit = pagination.limit.unwrap_or(names.len());
+    let names = names
+        .into_iter()
+        .skip(offset)
+        .take(limit)
+        .collect::<Vec<_>>();
+    if let Some(split) = pagination.split {
+        let names = names.chunks(split).map(|a| a.to_vec()).collect::<Vec<_>>();
+        Json(names).into_response()
+    } else {
+        Json(names).into_response()
+    }
+}
diff --git a/src/cal/mod.rs b/src/cal/mod.rs
index ba80763..3d677a6 100644
--- a/src/cal/mod.rs
+++ b/src/cal/mod.rs
@@ -1,6 +1,7 @@
 mod day00;
 mod day01;
 mod day04;
+mod day05;
 mod day06;
 mod day07;
 mod day08;
@@ -18,6 +19,7 @@ pub(crate) fn router(pool: sqlx::PgPool) -> axum::Router {
         .nest("/", day00::router())
         .nest("/", day01::router())
         .nest("/", day04::router())
+        .nest("/", day05::router())
         .nest("/", day06::router())
         .nest("/", day07::router())
         .nest("/", day08::router())