diff --git a/graph/connected_components_of_complement_graph/gen/star_remove_one_edge.cpp b/graph/connected_components_of_complement_graph/gen/star_remove_one_edge.cpp
new file mode 100644
index 000000000..9c0bb1598
--- /dev/null
+++ b/graph/connected_components_of_complement_graph/gen/star_remove_one_edge.cpp
@@ -0,0 +1,20 @@
+#include <cstdio>
+#include "random.h"
+#include "../params.h"
+
+using namespace std;
+
+int main(int, char **argv) {
+    long long seed = atoll(argv[1]);
+    Random gen(seed);
+    int n = N_MAX;
+    int m = n - 2;
+    printf("%d %d\n", n, m);
+    auto [center, partner] = gen.uniform_pair(0, n - 1);
+    for (int i = 0; i < n; ++i) {
+        if (i != center && i != partner) {
+            printf("%d %d\n", i, center);
+        }
+    }
+    return 0;
+}
diff --git a/graph/connected_components_of_complement_graph/hash.json b/graph/connected_components_of_complement_graph/hash.json
index 41592afbe..a136fef3b 100644
--- a/graph/connected_components_of_complement_graph/hash.json
+++ b/graph/connected_components_of_complement_graph/hash.json
@@ -46,5 +46,7 @@
   "no_edge_00.in": "5fc37b8e820c7ecfdaf122cdc5a0e1e9174d5d09d0b9c7aae8aeac434ca26aed",
   "no_edge_00.out": "219da5b597741168f705e7eeec1102c50593f23ec03d47fbd8d38d5f54c8b811",
   "star_00.in": "81ee21ae7add6b764b36888d0c9703ab616e634c17260735cf1087f5dd14a962",
-  "star_00.out": "d77af3500c0728e06c0b134a8f2c92ad1c3cc62b97f2f2c44d3b4f1016e6a76a"
+  "star_00.out": "d77af3500c0728e06c0b134a8f2c92ad1c3cc62b97f2f2c44d3b4f1016e6a76a",
+  "star_remove_one_edge_00.in": "bb01449453c118387af9525dcb8ffcefefd3eec0c569c521c854f1556e5bd15b",
+  "star_remove_one_edge_00.out": "219da5b597741168f705e7eeec1102c50593f23ec03d47fbd8d38d5f54c8b811"
 }
\ No newline at end of file
diff --git a/graph/connected_components_of_complement_graph/info.toml b/graph/connected_components_of_complement_graph/info.toml
index edba6c37c..acb7df910 100644
--- a/graph/connected_components_of_complement_graph/info.toml
+++ b/graph/connected_components_of_complement_graph/info.toml
@@ -17,6 +17,9 @@ forum = "https://github.com/yosupo06/library-checker-problems/issues/865"
 [[tests]]
     name = "star.cpp"
     number = 1
+[[tests]]
+    name = "star_remove_one_edge.cpp"
+    number = 1
 [[tests]]
     name = "complement_of_sparse.cpp"
     number = 5