diff --git a/README.md b/README.md
index bc4970e1dd..ddf4a72389 100755
--- a/README.md
+++ b/README.md
@@ -237,10 +237,16 @@ Docker images tagging policy:
 ## Vald Users
 
 <p align="center">
-    <img src="./assets/image/vald-users/yahoojapan.svg" alt="yahoojapan" width="30%" />
-&nbsp; &nbsp; &nbsp; &nbsp;
-    <img src="./assets/image/vald-users/japansearch_color.png.webp" alt="jpsearch" />
-  </ul>
+  <a href="https://www.lycorp.co.jp/en/" target="_blank">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="./assets/image/vald-users/lycorp_white.png">
+    <source media="(prefers-color-scheme: light)" srcset="./assets/image/vald-users/lycorp_black.png">
+    <img alt="LY" src="./assets/image/vald-users/lycorp.png" width="150" height="120">
+  </picture>
+  </a>
+  <a href="https://jpsearch.go.jp/" target="_blank">
+    <img src="./assets/image/vald-users/japansearch_color.png" alt="jpsearch" width="150" height="120"/>
+  </a>
 </p>
 
 ## Contribution
diff --git a/assets/image/vald-users/japansearch_color.png b/assets/image/vald-users/japansearch_color.png
new file mode 100644
index 0000000000..d1aa392404
Binary files /dev/null and b/assets/image/vald-users/japansearch_color.png differ
diff --git a/assets/image/vald-users/japansearch_color.png.webp b/assets/image/vald-users/japansearch_color.png.webp
deleted file mode 100644
index f78ca9c2f3..0000000000
Binary files a/assets/image/vald-users/japansearch_color.png.webp and /dev/null differ
diff --git a/assets/image/vald-users/lycorp.png b/assets/image/vald-users/lycorp.png
new file mode 100644
index 0000000000..1ee060ebbf
Binary files /dev/null and b/assets/image/vald-users/lycorp.png differ
diff --git a/assets/image/vald-users/lycorp_black.png b/assets/image/vald-users/lycorp_black.png
new file mode 100644
index 0000000000..1ee060ebbf
Binary files /dev/null and b/assets/image/vald-users/lycorp_black.png differ
diff --git a/assets/image/vald-users/lycorp_white.png b/assets/image/vald-users/lycorp_white.png
new file mode 100644
index 0000000000..c3438fad7d
Binary files /dev/null and b/assets/image/vald-users/lycorp_white.png differ
diff --git a/assets/image/vald-users/yahoojapan.svg b/assets/image/vald-users/yahoojapan.svg
deleted file mode 100644
index 515341157e..0000000000
--- a/assets/image/vald-users/yahoojapan.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="285" height="80" fill="none" viewBox="0 0 285 80"><path fill="#FF0031" d="M183.04 52.326C182.33 52.5156 179.74 53.5079 178.98 53.7421C178.9 56.4069 178.52 68.3372 178.52 68.3372C178.31 73.8898 176.15 77.5581 170.42 79.9999L168.35 79.4313C171.14 77.5804 172.37 75.9637 172.72 74.6034C173.29 72.8529 173.58 68.7944 173.58 61.324C173.58 61.324 173.52 55.6821 173.39 53.7755C172.53 53.6194 169.01 52.6605 167.93 52.3929L167.88 50.6201C170.12 50.6982 175.01 50.7762 176.94 50.7762C178.87 50.7762 181.21 50.6647 183.18 50.6201L183.04 52.326Z"/><path fill="#FF0031" d="M274.37 55.9499C273.95 56.0614 272.75 56.3625 271.7 56.6189C271.64 58.5478 271.83 72.7081 271.86 76.0865C271.86 76.5771 271.37 76.8224 270.98 76.3764C268.23 73.3771 259.48 62.3165 256.56 58.3137C256.55 60.8224 256.67 70.9019 256.7 72.7639C257.8 73.0984 260.34 73.7785 260.81 73.89L260.92 75.9081C258.71 75.8858 251.39 75.8858 251.26 75.9081L251.29 73.9569C252.24 73.5109 253.13 73.143 253.98 72.775C254.1 71.5931 254.08 57.6447 254.09 56.7527C253.37 56.6747 251.93 56.6412 250.93 56.5855V54.1659C252.13 54.1436 255.84 54.1548 257.87 54.1659C260.4 57.3659 266.45 64.9032 269.52 68.7276C269.55 65.4942 269.35 57.9234 269.31 56.6189C268.79 56.5074 267.6 56.3848 266.29 56.0837L266.12 54.1771C266.64 54.2328 269.94 54.2886 270.55 54.2886C271.17 54.2886 273.92 54.1102 274.49 54.0544L274.37 55.9499Z"/><path fill="#FF0031" d="M222.46 61.6141C222.46 64.3012 220.22 65.4162 217.77 65.8511V67.7465C222.92 67.1668 226.21 64.881 226.21 61.5138V61.3465C226.21 57.4329 223.88 54.0434 218.38 53.9207C218.38 53.9207 216.4 53.8315 215.26 53.8315H207.85L208.17 55.9835C209.2 56.1061 210.57 56.2399 211.44 56.3068C211.52 58.9939 211.76 70.0769 211.6 73.2211C211.01 73.3661 209.07 73.8009 208.32 74.0128L208.14 75.8971C208.87 75.8413 219.5 75.8525 220.28 75.8971L220.19 74.2804C219.43 74.0574 216.7 73.4999 216.01 73.3103C215.92 72.5633 215.72 56.8866 215.77 56.2065C216.87 56.2065 218.89 56.2622 219.77 56.5187C221.87 57.143 222.47 59.6741 222.47 61.2573"/><path fill="#FF0031" d="M79.21 11.3505C77.81 11.5066 72 12.9561 70.05 13.4244C67.96 14.0488 47.89 31.554 46.63 35.6014C46.35 37.0063 46.63 52.0586 46.63 52.0586L57.98 52.906L57.58 57.076C55.95 56.9534 45.42 56.9757 38.82 56.9757C35.47 56.9757 25.26 57.3882 21.82 57.2767L22.25 53.2962C24.4 53.4969 27.68 53.1178 29.7 52.5269C31.71 51.9359 33.15 51.0439 33.15 48.7917V35.7129C32.45 33.3826 15.76 9.94563 11.44 6.22159C10.18 5.75329 1.95 4.74981 0 4.29266L0.41 0.36792H38.5L37.95 3.98047C36.28 4.44876 28.22 4.62716 26.12 5.2404C31.56 14.2606 40.16 25.8676 42.95 30.3833C44.48 27.8969 59.08 16.5017 59.5 12.9338C57.41 12.4655 50.48 11.3505 49.37 11.3505L48.7 7.34772H81.59L79.21 11.3505Z"/><path fill="#FF0031" d="M160.34 45.3909C154.34 44.9895 143.81 45.1567 137.6 45.3909L137.97 41.8452C138.9 41.7449 143.81 40.8752 145.06 40.6745V28.5658C142.07 28.5658 125.38 28.9672 122.75 29.7253V40.6076C122.75 40.6076 129.94 41.533 131.62 41.7337L131.24 45.4132C124.69 45.0006 111.67 44.9895 105.48 45.3909L105.89 41.4438C107.83 41.3881 113.03 40.7191 114.24 40.5072C114.43 37.809 114.52 33.5386 114.52 29.0675V23.5483C114.52 21.6752 114.43 16.2675 114.33 14.3943C112.9 14.3943 106.94 13.7699 105.26 13.6696L105.67 10.1797C111.05 10.5142 127.65 10.503 132.23 10.1908L131.76 13.4466C130.46 13.5246 124.57 14.4947 122.76 14.5058V24.1616H145.07V10.0459C143.43 9.85633 139.41 8.85285 137.63 8.76365L137.98 5.51904C141.71 5.83124 156.46 5.77549 160.41 5.51904L160.11 8.91974C158.9 9.03124 154.57 9.84518 153.15 9.95668V40.7971C153.15 40.7971 159.45 41.6557 160.76 41.8564L160.34 45.3909Z"/><path fill="#FF0031" d="M272.87 49.037L268.75 49.2266L269.54 41.4663L273.64 41.6893L277.48 41.5332L276.67 49.1262L272.87 49.037ZM277.39 35.122H271.39V0H285L283.78 5.27388L277.39 35.122Z"/><path fill="#FF0031" d="M186.43 41.6558C185.93 41.667 185.44 41.7004 184.95 41.7339C184.46 41.7116 183.97 41.6781 183.47 41.6558C178.43 41.4997 168.69 38.2886 168.69 28.5993C168.69 28.4544 168.69 28.131 168.69 28.1199C168.69 28.1087 168.69 27.7743 168.69 27.6293C168.69 17.9401 178.43 14.7289 183.47 14.5728C183.97 14.5617 184.46 14.5282 184.95 14.4948C185.44 14.5171 185.93 14.5505 186.43 14.5728C191.47 14.7289 201.22 17.9401 201.22 27.6293C201.22 27.7743 201.22 28.0976 201.22 28.1199C201.22 28.1422 201.22 28.4544 201.22 28.5993C201.21 38.2886 191.47 41.4997 186.43 41.6558ZM209.79 27.8858C209.79 16.7471 200.22 9.99026 185.65 9.65576C185.65 9.65576 185.13 9.65576 184.94 9.65576C184.75 9.65576 184.23 9.65576 184.23 9.65576C168.77 10.0126 160.22 16.814 160.22 27.9415C160.22 27.9972 160.21 28.053 160.21 28.1087C160.21 28.1645 160.21 28.2202 160.22 28.276C160.32 38.7568 169.66 46.2161 184.23 46.5617C184.23 46.5617 184.75 46.5729 184.94 46.5617C185.13 46.5617 185.65 46.5617 185.65 46.5617C200.22 46.2272 209.61 39.2028 209.79 28.3206C209.79 28.2648 209.79 27.9415 209.79 27.8858Z"/><path fill="#FF0031" d="M241.56 38.0769C240.81 38.1326 240.07 38.1661 239.34 38.1661C238.61 38.1549 237.87 38.1326 237.12 38.0769C231.61 37.6532 221.62 33.8845 221.41 23.4706C221.62 13.0566 231.61 9.44407 237.12 9.03153C237.87 8.97578 238.6 8.95348 239.34 8.94233C240.07 8.95348 240.81 8.97578 241.56 9.03153C247.07 9.45522 257.06 13.0566 257.27 23.4706C257.07 33.8845 247.08 37.6532 241.56 38.0769ZM266.66 23.4706C266.66 23.4037 266.65 23.2699 266.65 23.2699C266.28 11.6183 256.21 4.09215 240.01 3.71305C240.01 3.71305 239.57 3.7019 239.35 3.7019C239.13 3.7019 238.69 3.71305 238.69 3.71305C222.48 4.09215 212.37 11.1054 212.05 23.2699V23.4706V23.649C212.37 35.8134 222.48 42.9939 238.69 43.373C238.69 43.373 239.13 43.3842 239.35 43.3842C239.57 43.3842 240.01 43.373 240.01 43.373C256.22 42.9939 266.33 35.8134 266.65 23.649C266.65 23.6601 266.66 23.5375 266.66 23.4706Z"/><path fill="#FF0031" d="M79.04 35.6796C79.57 34.1075 84.31 22.8796 84.31 22.8796L88.77 35.6796H79.04ZM103.45 50.3974C101.76 47.3089 95.39 29.8036 92.54 21.8761L97.77 20.9618L98.4 17.9736H90.44L90.45 18.0071C87.43 18.0517 75.11 17.929 73.76 17.8398L73.53 20.9507L79.85 22.6343C79.85 22.6343 70.6 43.0273 68.75 45.9709C67.11 46.3723 63.09 47.4427 61.58 47.6434L61.15 51.412C62.4 51.2113 78.55 51.3228 80.04 51.412L80.39 48.0113L74.76 46.5284C74.76 46.5284 77.32 40.5967 77.67 39.9165C79.52 39.5263 90.02 39.3479 90.02 39.3479L93.76 50.665C93.76 50.665 89.31 51.4343 87.55 51.5235L87.15 55.2364C88.47 55.2364 109.8 55.1361 110.41 55.2364L110.77 51.9026C109.18 51.8134 104.95 50.6873 103.45 50.3974Z"/><path fill="#FF0031" d="M246.58 73.3546C244.47 68.4487 240.94 58.8152 239.99 56.2173L242.51 55.8382L242.68 53.9539L232.26 54.3553L232.22 55.9274L234.92 56.4514C233.13 60.7999 228.54 71.9051 227.74 73.2096C227.04 73.4884 226.19 73.7783 225.35 74.1239L225.18 75.8856C227.57 75.7406 232.73 75.8298 233.54 75.8856L233.58 74.3023L231 73.4884C231 73.4884 232.61 69.1399 233.2 67.8243C235.21 67.7908 240.52 67.8466 240.52 67.8466L242.49 73.611C242.49 73.611 240.65 74.0459 239.29 74.3358L239.05 75.8745C239.76 75.8745 249.2 75.8187 249.53 75.8745L249.71 74.057C248.84 73.8675 246.58 73.3546 246.58 73.3546ZM233.89 65.8953C234.31 64.7469 237.03 57.6333 237.03 57.6333L239.91 65.9176L233.89 65.8953Z"/><path fill="#FF0031" d="M202.93 73.3547C201.61 70.2885 198.02 60.6996 196.38 56.2174L199.11 55.671L199.19 53.9651L188.61 54.3665L188.59 55.9275L191.29 56.4515C189.5 60.7999 184.89 71.9163 184.09 73.232C183.21 73.5888 182.45 73.8564 181.7 74.1463L181.53 75.908C183.89 75.8188 189.09 75.8522 189.89 75.908L189.93 74.3247L187.34 73.4996C187.34 73.4996 188.96 69.1512 189.54 67.8466C191.55 67.8132 196.86 67.8689 196.86 67.8689L198.83 73.6334C198.83 73.6334 196.99 74.0683 195.63 74.3581L195.4 75.8968C196.11 75.8968 205.55 75.8411 205.88 75.8968L206.06 74.0794C205.19 73.8676 202.93 73.3547 202.93 73.3547ZM190.24 65.9066C190.66 64.7581 193.38 57.6445 193.38 57.6445L196.26 65.9289L190.24 65.9066Z"/></svg>
\ No newline at end of file